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Lensing Media
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Fernstudi.fm
Wie man die Skriptberge an der FernUni überlebt – David Lensing über Journaling & Philosophie
Was macht das Menschsein aus – und wie kann man das Fernstudium nutzen, um sich persönlich weiterzuentwickeln? David Johann Lensing, Content Creator sowie Philosophie Master-Absolvent der FernUni Hagen und aktuell in Wirtschaftsinformatik immatrikuliert, teilt in diesem Gespräch seine Erfahrungen mit den großen Herausforderungen des Studiums: der immensen Textmenge, dem Finden der richtigen Lernmethoden und der Organisation von Wissen. Besonders spannend sind seine Einblicke in das Journaling als Werkzeug für persönliches Wachstum und Wissensmanagement, aber auch sein Umgang mit digitalen Tools wie Obsidian, um das eigene Wissen zu organisieren. David zeigt, wie man Not...
2025-11-08
1h 08
Politik Spezial - Stimme der Vernunft - Der Podcast
Vom Polizisten zum Staatsfeind! – Die Geschichte des AfD-Abgeordneten Sascha Lensing
🪙 Schützen Sie Ihr Vermögen mit Max Ottes Goldfonds – jetzt den kostenfreien Spezialreport herunterladen: https://deingoldfonds.de/goldreport-2025?utm_source=youtube&utm_medium=organic&utm_campaign=politikspezial📰 Videobeschreibung:In diesem Vortrag hören Sie Sascha Lensing, Mitglied des Deutschen Bundestages für die AfD und Mitglied des Innenausschusses. Besonders brisant: Lensing war viele Jahre Polizist, bevor er den Schritt in die Politik wagte.Er berichtet offen über die massiven Repressionen, die ihn nach seinem Eintritt in die AfD und seiner ersten Kandidatur trafen. Was er schildert, lässt tief blicken: Überwachung durch den Verfassungs...
2025-11-04
17 min
Juristinnen erzählen - ein Interviewpodcast des ITM Münster
Folge 15: Warum dürfen wir Mentoring nicht als "Nachhilfe" verstehen? Interview mit Dr. Andrea Lensing-Kramer
In der 15. Folge von Juristinnen erzählen ist Dr. Andrea Lensing-Kramer zu Gast. Andrea war bis vor Kurzem noch als Anwältin und Partnerin bei Freshfields Bruckhaus Deringer im IP-Bereich tätig. Sie war eine der ersten Juristinnen, die in den 90er Jahren in einer der Vorgänger-Kanzleien von Freshfields zur Partnerin ernannt wurden. Heute widmet sich Andrea vor allem dem Thema Mentoring und Coaching. Als Mentorin stand sie bereits in den letzten Jahren jüngeren Kanzlei-Kolleginnen zur Seite. Im Interview spricht Andrea über ihre Zeit als junge Partnerin bei Freshfields, darüber, was sie damals gern gewusst...
2025-08-01
52 min
A LA LATINA
46 - María Lensing / Global CIO and CTO at SORENSON COMUNICATIONS
NEW EPISODE: Maria Lensing – The Power of Being Seen Global Chief Information and Technology Officer at Sorenson Communications In this powerful episode of A LA LATINA, Claudia Romo Edelman and Cynthia Kleinbaum Milner sit down with Maria Lensing, one of the few Latinas to have reached the C-suite in Fortune 10 companies in the tech space. From escaping Peru with her family to save her brother’s life, to becoming a transformational leader in corporate America, Maria opens up about her story of resilience, leadership, and identity. 3 Key Takeaways: Agent vs. Hammer of Change: Maria warns Latinas about being used as driv...
2025-07-23
27 min
Podcast - Alejandro Cremades
Jon Lensing On Building A $1 Billion Telehealth Company That Provides A Full-Stack, White-Labeled Platform To Support Virtual Care Services
Jon Lensing’s journey is anything but conventional. It is packed with adrenaline and the kind of gut-check moments that define great founders. Inspired by his small-town roots and driven by a desire to change the status quo, he left behind a budding career in medicine to build OpenLoop. The post Jon Lensing On Building A $1 Billion Telehealth Company That Provides A Full-Stack, White-Labeled Platform To Support Virtual Care Services appeared first on Alejandro Cremades.
2025-07-16
32 min
Whimsical Wavelengths - A Science Podcast
Gravitational Lensing Part 2! Strong Lensing, modeling and so much more!
Welcome back to Part 2 of Gravitational lenses on Whimsical Wavelengths. In part 2 we finally get to the real star of the show, strong gravitational lensing and the paper that was underlying the topic.“Euclid: A complete Einstein ring in NGC 6505 “A lot less to setup this time. No need to stretch this out like gravity stretches time. But.....How did gravity stop the reckless driver?It pulled some strings… mainly the ones holding the car to the road.Before everything gets pulled downhill, time to jump in Please...
2025-04-28
1h 01
Cosmos in a Pod
Cosmic Magnifying Glasses: The Power of Gravitational Lensing | Cosmos in a Pod S1E40
In this episode of Cosmos in a Pod, we explore gravitational lensing—a breathtaking cosmic phenomenon where massive objects bend and magnify light, revealing hidden wonders of the universe.Key HighlightsWhat Is Gravitational Lensing?The bending of light by massive objects like galaxies, is predicted by Einstein’s general relativity.Acts as a natural magnifier, uncovering distant and faint cosmic objects.Types of Lensing:Strong Lensing: Creates Einstein rings and multiple images.Weak Lensing: Subtle distortions reveal dark matter.Microlensing: Detects small objects like rogue planets.Why It Matters:Maps dark matter and probes its myst...
2024-12-20
18 min
Common Sense Digest & Colorado Clarity
Iowa’s Healthcare Landscape featuring Dr. Chelsea Lensing
Iowa’s policymakers, providers, and insurers operate within a state comprised of an aging population and large rural areas. According to the Iowa Department of Justice, the state ranks 16th nationally for the number of residents 50-years-old and over. Approximately 18% of Iowa’s more-than-three-million residents are 65 years old and older while 23% are under 18 years old. The average life expectancy in Iowa is 78.12—21st highest in the country. In addition, the United States Department of Agriculture (USDA) considers 77 of the state’s 99 counties “rural” based on the amount of open countryside and rural towns. These are only some of the findings in...
2024-10-07
35 min
Common Sense Digest & Colorado Clarity
Iowa’s Healthcare Landscape featuring Dr. Chelsea Lensing
Iowa’s policymakers, providers, and insurers operate within a state comprised of an aging population and large rural areas. According to the Iowa Department of Justice, the state ranks 16th nationally for the number of residents 50-years-old and over. Approximately 18% of Iowa’s more-than-three-million residents are 65 years old and older while 23% are under 18 years old. The average life expectancy in Iowa is 78.12—21st highest in the country. In addition, the United States Department of Agriculture (USDA) considers 77 of the state’s 99 counties “rural” based on the amount of open countryside and rural towns. These are only some of the findings in...
2024-10-07
35 min
1 Year 1 Fear with Cara Flynn
86: A Different Sort of Business w/ Michael Lensing
Michael Lensing is the Co-Owner of Lensing Funeral & Cremation Service in Iowa City. Michael with speak of his childhood in Cedar Rapids, his mortician education, his marraige and children, and aging, among so many other things. Follow 1Y1F on Instagram: @1year1fearpodcast 1 Year 1 Fear is co-produced by sumadrepodcasts.com
2024-09-09
2h 26
CEO.com | Dispatches from the frontiers of leadership
OpenLoop Health CEO Jon Lensing
On this episode of the CEO podcast Jon Lensing, CEO of OpenLoop, discusses the foundation and evolution of his company which provides comprehensive telehealth services. Established during the challenging times of the pandemic in 2020, OpenLoop initially served as a matching system for healthcare providers to cover shifts in hospitals. Lensing explains how the company pivoted to becoming a significant player in the telehealth sector, offering technological infrastructure, staffing, legal compliance, and billing services to facilitate remote healthcare. He shares insights into his background, from a small-town upbringing to starting a drone company during his undergraduate studies, which influenced his innovative...
2024-07-23
27 min
Fintrepreneur
#29: The Evolution of Fintech Marketing: Insights from Former CMO Brad Lensing
Welcome to another episode of Fintrepreneur! Today, we're diving into "The Evolution of Fintech Marketing: Insights from Former CMO Brad Lensing."In this episode, we'll explore Brad Lensing's career journey and key milestones in fintech marketing as a former CMO for both Prosper Marketplace & Sindeo. From his early days to pivotal moments in his career, we'll uncover the insights and experiences that have shaped his approach to marketing in the financial technology sector.Join us as we discuss Brad's strategies for fostering high-performing marketing teams, driving revenue growth, and scaling marketing operations efficiently. We'll delve...
2024-04-08
38 min
Universe Today Podcast
[Q&A] Supernova VS Nova, Orientation of the Moon, Gravitational Lensing of the CMB
Does gravitational lensing affect the CMB? Can the Great Attractor solve the Hubble tension? Why don't we put a Deep Space Network antenna in space? What's the difference between a nova and a supernova? Answering all these questions and more in this week's Q&A show.🦄 Support us on Patreon: https://patreon.com/universetoday📚 Suggest books in the book club:https://www.goodreads.com/group/show/1198440-universe-today-book-club00:00 Start01:31 [Andoria] How does gravitational lensing affect the CMB?05:31 [Vulcan] What's the difference between a nova and a supern...
2024-04-02
00 min
The Hutch Podcast
Healthcare of the Future, Navigating Fundraising and Operating as a CEO, and Keys to Success with Jon Lensing
Jon Lensing is the Co-founder and CEO of Openloop. OpenLoop is a Des Moines-based startup powering the telehealth industry from end-to-end solutions that streamline virtual care. After graduating from medical school at the University of Iowa, Jon and his co-founders started OpenLoop. As the pandemic shocked the world OpenLoop found itself in a unique position to capitalize on the rapidly changing healthcare industry. Today, OpenLoop serves thousands of clients worldwide and continues to grow and expand operations to connect patients with medical professionals. In this episode with Jon Lensing, we discuss: 1. Personal Journey and Founding of...
2024-02-21
49 min
Those Who Do Podcast
Those Who Do: Psych Nurse Practitioner w/Cassy Lensing
Cassy Lensing is a tattooed, dyed haired former wild child. She’s also a devoted mother and board certified Psych Nurse Practitioner. In this episode, Cassy talks about how getting pregnant at 19 completely changed the course of her life for the better. She shares her journey from life in small town Iowa working at her dad’s gas station to Nurse Practitioner focusing on treating the person instead of just the mental illness. Cassy explains why the people usually considered society’s lost are the most fulfilling folks to treat and how having her own successful practice has allowed her to mos...
2024-02-12
2h 03
Those Who Do Podcast
Those Who Do: Psych Nurse Practitioner w/Cassy Lensing
Cassy Lensing is a tattooed, dyed haired former wild child. She’s also a devoted mother and board certified Psych Nurse Practitioner. In this episode, Cassy talks about how getting pregnant at 19 completely changed the course of her life for the better. She shares her journey from life in small town Iowa working at her dad’s gas station to Nurse Practitioner focusing on treating the person instead of just the mental illness. Cassy explains why the people usually considered society’s lost are the most fulfilling folks to treat and how having her own successful practice has allowed her to mos...
2024-02-12
2h 03
Science Society
Dr. Alfred: Gravitational Lensing and Wavelike Dark Matter
In this intriguing episode, we are joined by Dr. Alfred, who takes us on a cosmic journey through the mysteries of gravitational lensing and the elusive nature of dark matter. Discussing his latest research, Dr. Alfred illuminates how the unique interplay between gravitational lensing and wavelike dark matter reveals hidden aspects of our universe. Together, we traverse the cosmos, understanding how these phenomena allow us to 'see' the unseen and open new paths for understanding the the true nature of dark matter. Join us for a deep dive into these cosmic phenomena, and which important role ultralight bosons (axions) play...
2023-06-08
2h 09
New Discourses
(Theoretical) Lensing
New Discourses Bullets, Ep. 33 Woke works through reframing, and much of the reframing occurs by passing every bit of relevant information through what they refer to as "theoretical lenses." These "lenses" might include Theories like Critical Race Theory or Queer Theory, agendas like Sustainability, or focuses like diversity, equity, and inclusion. This lensing effect distorts perception and comprehension and enables Woke manipulation, like seeing the world in a fun-house mirror. Understanding that all information that has been passed through Woke sources has been "lensed" is crucial to understanding it accurately and engaging it in a smart way. In this episode...
2023-01-27
12 min
Astro arXiv | astro-ph.CO
Real-world CMB lensing quadratic estimator power spectrum response
Real-world CMB lensing quadratic estimator power spectrum response by Julien Carron. on Wednesday 30 November I describe a method to estimate response matrices of Cosmic Microwave Background (CMB) lensing power spectra estimators to the true sky power under realistic conditions. Applicable to all lensing reconstruction pipelines based on quadratic estimators (QE), it uses a small number of Gaussian CMB Monte-Carlos and specially designed QE's in order to obtain sufficiently accurate matrices with little computational effort. This method may be used to improve the modelling of CMB lensing band-powers by incorporating at least some of the non-idealities encountered in CMB lensing reconstruction...
2022-12-01
00 min
Astro arXiv | all categories
Real-world CMB lensing quadratic estimator power spectrum response
Real-world CMB lensing quadratic estimator power spectrum response by Julien Carron. on Wednesday 30 November I describe a method to estimate response matrices of Cosmic Microwave Background (CMB) lensing power spectra estimators to the true sky power under realistic conditions. Applicable to all lensing reconstruction pipelines based on quadratic estimators (QE), it uses a small number of Gaussian CMB Monte-Carlos and specially designed QE's in order to obtain sufficiently accurate matrices with little computational effort. This method may be used to improve the modelling of CMB lensing band-powers by incorporating at least some of the non-idealities encountered in CMB lensing reconstruction...
2022-12-01
00 min
Astro arXiv | all categories
PERISTOLE: PackagE that geneRates tIme delay plotS caused by graviTatiOnaL lEnsing
PERISTOLE: PackagE that geneRates tIme delay plotS caused by graviTatiOnaL lEnsing by T. S. Sachin Venkatesh et al. on Wednesday 30 November We present PERISTOLE to study the various time delays associated with the pulsar rotation and other general relativistic aspects of binary pulsars. It is made available as an open-source python package which takes some parameters of the double pulsar system as input and outputs the rotational and latitudinal lensing delays along with the geometric and Shapiro delays that arise due to gravitational lensing. This package was intended to provide a way to quickly analyse, evaluate and study the differences...
2022-12-01
00 min
Astro arXiv | all categories
Line-of-sight effects in strong gravitational lensing
Line-of-sight effects in strong gravitational lensing by Pierre Fleury et al. on Wednesday 30 November While most strong-gravitational-lensing systems may be roughly modelled by a single massive object between the source and the observer, in the details all the structures near the light path contribute to the observed images. These additional contributions, known as line-of-sight effects, are non-negligible in practice. This article proposes a new theoretical framework to model the line-of-sight effects, together with very promising applications at the interface of weak and strong lensing. Our approach relies on the dominant-lens approximation, where one deflector is treated as the main lens...
2022-12-01
00 min
Astro arXiv | all categories
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue by Markus Michael Rau et al. on Wednesday 30 November We present posterior sample redshift distributions for the Hyper Suprime-Cam Subaru Strategic Program Weak Lensing three-year (HSC Y3) analysis. Using the galaxies' photometry and spatial cross-correlations, we conduct a combined Bayesian Hierarchical Inference of the sample redshift distributions. The spatial cross-correlations are derived using a subsample of Luminous Red Galaxies (LRGs) with accurate redshift information available up to a photometric redshift of $z < 1.2$. We derive the photometry-based constraints using a combination of two empirical techniques...
2022-12-01
00 min
Astro arXiv | all categories
Real-world CMB lensing quadratic estimator power spectrum response
Real-world CMB lensing quadratic estimator power spectrum response by Julien Carron. on Wednesday 30 November I describe a method to estimate response matrices of Cosmic Microwave Background (CMB) lensing power spectra estimators to the true sky power under realistic conditions. Applicable to all lensing reconstruction pipelines based on quadratic estimators (QE), it uses a small number of Gaussian CMB Monte-Carlos and specially designed QE's in order to obtain sufficiently accurate matrices with little computational effort. This method may be used to improve the modelling of CMB lensing band-powers by incorporating at least some of the non-idealities encountered in CMB lensing reconstruction...
2022-12-01
00 min
Astro arXiv | all categories
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue by Markus Michael Rau et al. on Wednesday 30 November We present posterior sample redshift distributions for the Hyper Suprime-Cam Subaru Strategic Program Weak Lensing three-year (HSC Y3) analysis. Using the galaxies' photometry and spatial cross-correlations, we conduct a combined Bayesian Hierarchical Inference of the sample redshift distributions. The spatial cross-correlations are derived using a subsample of Luminous Red Galaxies (LRGs) with accurate redshift information available up to a photometric redshift of $z < 1.2$. We derive the photometry-based constraints using a combination of two empirical techniques...
2022-12-01
00 min
Astro arXiv | all categories
Real-world CMB lensing quadratic estimator power spectrum response
Real-world CMB lensing quadratic estimator power spectrum response by Julien Carron. on Wednesday 30 November I describe a method to estimate response matrices of Cosmic Microwave Background (CMB) lensing power spectra estimators to the true sky power under realistic conditions. Applicable to all lensing reconstruction pipelines based on quadratic estimators (QE), it uses a small number of Gaussian CMB Monte-Carlos and specially designed QE's in order to obtain sufficiently accurate matrices with little computational effort. This method may be used to improve the modelling of CMB lensing band-powers by incorporating at least some of the non-idealities encountered in CMB lensing reconstruction...
2022-12-01
00 min
Astro arXiv | astro-ph.IM
PERISTOLE: PackagE that geneRates tIme delay plotS caused by graviTatiOnaL lEnsing
PERISTOLE: PackagE that geneRates tIme delay plotS caused by graviTatiOnaL lEnsing by T. S. Sachin Venkatesh et al. on Wednesday 30 November We present PERISTOLE to study the various time delays associated with the pulsar rotation and other general relativistic aspects of binary pulsars. It is made available as an open-source python package which takes some parameters of the double pulsar system as input and outputs the rotational and latitudinal lensing delays along with the geometric and Shapiro delays that arise due to gravitational lensing. This package was intended to provide a way to quickly analyse, evaluate and study the differences...
2022-12-01
00 min
Astro arXiv | astro-ph.CO
Real-world CMB lensing quadratic estimator power spectrum response
Real-world CMB lensing quadratic estimator power spectrum response by Julien Carron. on Wednesday 30 November I describe a method to estimate response matrices of Cosmic Microwave Background (CMB) lensing power spectra estimators to the true sky power under realistic conditions. Applicable to all lensing reconstruction pipelines based on quadratic estimators (QE), it uses a small number of Gaussian CMB Monte-Carlos and specially designed QE's in order to obtain sufficiently accurate matrices with little computational effort. This method may be used to improve the modelling of CMB lensing band-powers by incorporating at least some of the non-idealities encountered in CMB lensing reconstruction...
2022-12-01
00 min
Astro arXiv | astro-ph.CO
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue by Markus Michael Rau et al. on Wednesday 30 November We present posterior sample redshift distributions for the Hyper Suprime-Cam Subaru Strategic Program Weak Lensing three-year (HSC Y3) analysis. Using the galaxies' photometry and spatial cross-correlations, we conduct a combined Bayesian Hierarchical Inference of the sample redshift distributions. The spatial cross-correlations are derived using a subsample of Luminous Red Galaxies (LRGs) with accurate redshift information available up to a photometric redshift of $z < 1.2$. We derive the photometry-based constraints using a combination of two empirical techniques...
2022-12-01
00 min
Astro arXiv | astro-ph.CO
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue
Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue by Markus Michael Rau et al. on Wednesday 30 November We present posterior sample redshift distributions for the Hyper Suprime-Cam Subaru Strategic Program Weak Lensing three-year (HSC Y3) analysis. Using the galaxies' photometry and spatial cross-correlations, we conduct a combined Bayesian Hierarchical Inference of the sample redshift distributions. The spatial cross-correlations are derived using a subsample of Luminous Red Galaxies (LRGs) with accurate redshift information available up to a photometric redshift of $z < 1.2$. We derive the photometry-based constraints using a combination of two empirical techniques...
2022-12-01
00 min
Astro arXiv | astro-ph.CO
Line-of-sight effects in strong gravitational lensing
Line-of-sight effects in strong gravitational lensing by Pierre Fleury et al. on Wednesday 30 November While most strong-gravitational-lensing systems may be roughly modelled by a single massive object between the source and the observer, in the details all the structures near the light path contribute to the observed images. These additional contributions, known as line-of-sight effects, are non-negligible in practice. This article proposes a new theoretical framework to model the line-of-sight effects, together with very promising applications at the interface of weak and strong lensing. Our approach relies on the dominant-lens approximation, where one deflector is treated as the main lens...
2022-12-01
00 min
Astro arXiv | astro-ph.CO
Real-world CMB lensing quadratic estimator power spectrum response
Real-world CMB lensing quadratic estimator power spectrum response by Julien Carron. on Wednesday 30 November I describe a method to estimate response matrices of Cosmic Microwave Background (CMB) lensing power spectra estimators to the true sky power under realistic conditions. Applicable to all lensing reconstruction pipelines based on quadratic estimators (QE), it uses a small number of Gaussian CMB Monte-Carlos and specially designed QE's in order to obtain sufficiently accurate matrices with little computational effort. This method may be used to improve the modelling of CMB lensing band-powers by incorporating at least some of the non-idealities encountered in CMB lensing reconstruction...
2022-12-01
00 min
Astro arXiv | astro-ph.CO
Constraining dark matter decays with cosmic microwave background and weak lensing shear observations
Constraining dark matter decays with cosmic microwave background and weak lensing shear observations by Jozef Bucko et al. on Tuesday 29 November From observations of both low and high redshifts, it is well known that the bulk of dark matter (DM) has to be stable or, at least, very long-lived. However, the possibility that a small fraction of DM is unstable or that all of DM decays with a half-life time ($\tau$) significantly larger than the age of the universe is not ruled out. One-body decaying dark matter (DDM) consists of a minimal extension to the $\Lambda$CDM model. It causes...
2022-11-30
01 min
Astro arXiv | astro-ph.IM
PERISTOLE: PackagE that geneRates tIme delay plotS caused by graviTatiOnaL lEnsing
PERISTOLE: PackagE that geneRates tIme delay plotS caused by graviTatiOnaL lEnsing by T. S. Sachin Venkatesh et al. on Tuesday 29 November We present PERISTOLE to study the various time delays associated with the pulsar rotation and other general relativistic aspects of binary pulsars. It is made available as an open-source python package which takes some parameters of the double pulsar system as input and outputs the rotational and latitudinal lensing delays along with the geometric and Shapiro delays that arise due to gravitational lensing. This package was intended to provide a way to quickly analyse, evaluate and study the differences...
2022-11-30
00 min
Astro arXiv | all categories
Constraining dark matter decays with cosmic microwave background and weak lensing shear observations
Constraining dark matter decays with cosmic microwave background and weak lensing shear observations by Jozef Bucko et al. on Tuesday 29 November From observations of both low and high redshifts, it is well known that the bulk of dark matter (DM) has to be stable or, at least, very long-lived. However, the possibility that a small fraction of DM is unstable or that all of DM decays with a half-life time ($\tau$) significantly larger than the age of the universe is not ruled out. One-body decaying dark matter (DDM) consists of a minimal extension to the $\Lambda$CDM model. It causes...
2022-11-30
01 min
Astro arXiv | all categories
Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens
Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens by Zhao-Feng Wu et al. on Tuesday 29 November The mergers of supermassive black hole binaries (SMBHBs) can serve as standard sirens: the gravitational wave (GW) analog of standard candles. The upcoming space-borne GW detectors will be able to discover such systems and estimate their luminosity distances precisely. Unfortunately, weak gravitational lensing can induce significant errors in the measured distance of these standard sirens at high redshift, severely limiting their usefulness as precise distance probes. The uncertainty due to weak lensing can be reduced if the lensing magnification of the siren...
2022-11-30
00 min
Astro arXiv | all categories
PERISTOLE: PackagE that geneRates tIme delay plotS caused by graviTatiOnaL lEnsing
PERISTOLE: PackagE that geneRates tIme delay plotS caused by graviTatiOnaL lEnsing by T. S. Sachin Venkatesh et al. on Tuesday 29 November We present PERISTOLE to study the various time delays associated with the pulsar rotation and other general relativistic aspects of binary pulsars. It is made available as an open-source python package which takes some parameters of the double pulsar system as input and outputs the rotational and latitudinal lensing delays along with the geometric and Shapiro delays that arise due to gravitational lensing. This package was intended to provide a way to quickly analyse, evaluate and study the differences...
2022-11-30
00 min
Astro arXiv | astro-ph.CO
Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens
Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens by Zhao-Feng Wu et al. on Tuesday 29 November The mergers of supermassive black hole binaries (SMBHBs) can serve as standard sirens: the gravitational wave (GW) analog of standard candles. The upcoming space-borne GW detectors will be able to discover such systems and estimate their luminosity distances precisely. Unfortunately, weak gravitational lensing can induce significant errors in the measured distance of these standard sirens at high redshift, severely limiting their usefulness as precise distance probes. The uncertainty due to weak lensing can be reduced if the lensing magnification of the siren...
2022-11-30
00 min
Astro arXiv | all categories
Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens
Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens by Zhao-Feng Wu et al. on Monday 28 November The mergers of supermassive black hole binaries (SMBHBs) can serve as standard sirens: the gravitational wave (GW) analog of standard candles. The upcoming space-borne GW detectors will be able to discover such systems and estimate their luminosity distances precisely. Unfortunately, weak gravitational lensing can induce significant errors in the measured distance of these standard sirens at high redshift, severely limiting their usefulness as precise distance probes. The uncertainty due to weak lensing can be reduced if the lensing magnification of the siren...
2022-11-29
01 min
Astro arXiv | all categories
Constraining dark matter decays with cosmic microwave background and weak lensing shear observations
Constraining dark matter decays with cosmic microwave background and weak lensing shear observations by Jozef Bucko et al. on Monday 28 November From observations of both low and high redshifts, it is well known that the bulk of dark matter (DM) has to be stable or, at least, very long-lived. However, the possibility that a small fraction of DM is unstable or that all of DM decays with a half-life time ($\tau$) significantly larger than the age of the universe is not ruled out. One-body decaying dark matter (DDM) consists of a minimal extension to the $\Lambda$CDM model. It causes...
2022-11-29
00 min
Astro arXiv | all categories
Cross-correlation of DES Y3 lensing and ACT it Planck thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles
Cross-correlation of DES Y3 lensing and ACT it Planck thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles by S. Pandey et al. on Monday 28 November Hot, ionized gas leaves an imprint on the cosmic microwave background via the thermal Sunyaev Zel'dovich (tSZ) effect. The cross-correlation of gravitational lensing (which traces the projected mass) with the tSZ effect (which traces the projected gas pressure) is a powerful probe of the thermal state of ionized baryons throughout the Universe, and is sensitive to effects such as baryonic feedback. In a companion paper (Gatti et al. 2021), we present tomographic ...
2022-11-29
01 min
Astro arXiv | astro-ph.CO
Cross-correlation of DES Y3 lensing and ACT it Planck thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles
Cross-correlation of DES Y3 lensing and ACT it Planck thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles by S. Pandey et al. on Monday 28 November Hot, ionized gas leaves an imprint on the cosmic microwave background via the thermal Sunyaev Zel'dovich (tSZ) effect. The cross-correlation of gravitational lensing (which traces the projected mass) with the tSZ effect (which traces the projected gas pressure) is a powerful probe of the thermal state of ionized baryons throughout the Universe, and is sensitive to effects such as baryonic feedback. In a companion paper (Gatti et al. 2021), we present tomographic ...
2022-11-29
01 min
Astro arXiv | astro-ph.CO
Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens
Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens by Zhao-Feng Wu et al. on Monday 28 November The mergers of supermassive black hole binaries (SMBHBs) can serve as standard sirens: the gravitational wave (GW) analog of standard candles. The upcoming space-borne GW detectors will be able to discover such systems and estimate their luminosity distances precisely. Unfortunately, weak gravitational lensing can induce significant errors in the measured distance of these standard sirens at high redshift, severely limiting their usefulness as precise distance probes. The uncertainty due to weak lensing can be reduced if the lensing magnification of the siren...
2022-11-29
01 min
Astro arXiv | astro-ph.CO
Constraining dark matter decays with cosmic microwave background and weak lensing shear observations
Constraining dark matter decays with cosmic microwave background and weak lensing shear observations by Jozef Bucko et al. on Monday 28 November From observations of both low and high redshifts, it is well known that the bulk of dark matter (DM) has to be stable or, at least, very long-lived. However, the possibility that a small fraction of DM is unstable or that all of DM decays with a half-life time ($\tau$) significantly larger than the age of the universe is not ruled out. One-body decaying dark matter (DDM) consists of a minimal extension to the $\Lambda$CDM model. It causes...
2022-11-29
00 min
Astro arXiv | astro-ph.CO
Cross-correlation of DES Y3 lensing and ACT it Planck thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles
Cross-correlation of DES Y3 lensing and ACT it Planck thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles by S. Pandey et al. on Sunday 27 November Hot, ionized gas leaves an imprint on the cosmic microwave background via the thermal Sunyaev Zel'dovich (tSZ) effect. The cross-correlation of gravitational lensing (which traces the projected mass) with the tSZ effect (which traces the projected gas pressure) is a powerful probe of the thermal state of ionized baryons throughout the Universe, and is sensitive to effects such as baryonic feedback. In a companion paper (Gatti et al. 2021), we present tomographic ...
2022-11-28
00 min
Astro arXiv | all categories
Cross-correlation of DES Y3 lensing and ACT it Planck thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles
Cross-correlation of DES Y3 lensing and ACT it Planck thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles by S. Pandey et al. on Sunday 27 November Hot, ionized gas leaves an imprint on the cosmic microwave background via the thermal Sunyaev Zel'dovich (tSZ) effect. The cross-correlation of gravitational lensing (which traces the projected mass) with the tSZ effect (which traces the projected gas pressure) is a powerful probe of the thermal state of ionized baryons throughout the Universe, and is sensitive to effects such as baryonic feedback. In a companion paper (Gatti et al. 2021), we present tomographic ...
2022-11-28
00 min
Astro arXiv | all categories
Plasma lensing near the eclipses of the Black Widow pulsar B1957+20
Plasma lensing near the eclipses of the Black Widow pulsar B1957+20 by Fang Xi Lin et al. on Thursday 24 November Recently, several eclipsing millisecond pulsars have been shown to experience strong and apparent weak lensing from the outflow of their ionized companions. Lensing can be a powerful probe of the ionized plasma, with the strongest lenses potentially resolving emission regions of pulsars. Understanding lensing in the `laboratory-like' conditions of an eclipsing pulsar may be analogously applied to fast radio bursts, many of which reside in dense, magnetized environments. We examined variable dispersion measure (DM), absorption, scattering, and flux density in...
2022-11-25
01 min
Astro arXiv | all categories
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments by Eileen Sophie Giesel et al. on Wednesday 23 November The Etherington distance duality relation is well-established for metric theories of gravity, and confirms the duality between the luminosity distance and the angular diameter distance through the conservation of surface brightness. A violation of the Etherington distance duality due to lensing in a non-metric spacetime would lead to fluctuations in surface brightness of galaxies. Likewise, fluctuations of the surface brightness can arise in classical astrophysics as a consequence of intrinsic tidal interaction of galaxies with their environment. Therefore, we study...
2022-11-24
00 min
Astro arXiv | astro-ph.CO
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments by Eileen Sophie Giesel et al. on Wednesday 23 November The Etherington distance duality relation is well-established for metric theories of gravity, and confirms the duality between the luminosity distance and the angular diameter distance through the conservation of surface brightness. A violation of the Etherington distance duality due to lensing in a non-metric spacetime would lead to fluctuations in surface brightness of galaxies. Likewise, fluctuations of the surface brightness can arise in classical astrophysics as a consequence of intrinsic tidal interaction of galaxies with their environment. Therefore, we study...
2022-11-24
00 min
Astro arXiv | astro-ph.CO
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching by Sergio Contreras et al. on Wednesday 23 November The spatial distribution of galaxies and their gravitational lensing signal offer complementary tests of galaxy formation physics and cosmology. However, their synergy can only be fully exploited if both probes are modelled accurately and consistently. In this paper, we demonstrate that this can be achieved using an extension of Subhalo Abundance Matching, dubbed SHAMe. Specifically, we use mock catalogues built from the TNG300 hydrodynamical simulation to show that SHAMe can simultaneously model the multipoles of the redshift-space galaxy...
2022-11-24
01 min
Astro arXiv | all categories
Plasma lensing near the eclipses of the Black Widow pulsar B1957+20
Plasma lensing near the eclipses of the Black Widow pulsar B1957+20 by Fang Xi Lin et al. on Wednesday 23 November Recently, several eclipsing millisecond pulsars have been shown to experience strong and apparent weak lensing from the outflow of their ionized companions. Lensing can be a powerful probe of the ionized plasma, with the strongest lenses potentially resolving emission regions of pulsars. Understanding lensing in the `laboratory-like' conditions of an eclipsing pulsar may be analogously applied to fast radio bursts, many of which reside in dense, magnetized environments. We examined variable dispersion measure (DM), absorption, scattering, and flux density in...
2022-11-24
00 min
Astro arXiv | all categories
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching by Sergio Contreras et al. on Wednesday 23 November The spatial distribution of galaxies and their gravitational lensing signal offer complementary tests of galaxy formation physics and cosmology. However, their synergy can only be fully exploited if both probes are modelled accurately and consistently. In this paper, we demonstrate that this can be achieved using an extension of Subhalo Abundance Matching, dubbed SHAMe. Specifically, we use mock catalogues built from the TNG300 hydrodynamical simulation to show that SHAMe can simultaneously model the multipoles of the redshift-space galaxy...
2022-11-24
01 min
Astro arXiv | astro-ph.CO
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments by Eileen Sophie Giesel et al. on Tuesday 22 November The Etherington distance duality relation is well-established for metric theories of gravity, and confirms the duality between the luminosity distance and the angular diameter distance through the conservation of surface brightness. A violation of the Etherington distance duality due to lensing in a non-metric spacetime would lead to fluctuations in surface brightness of galaxies. Likewise, fluctuations of the surface brightness can arise in classical astrophysics as a consequence of intrinsic tidal interaction of galaxies with their environment. Therefore, we study...
2022-11-23
00 min
Astro arXiv | astro-ph.GA
A ~200 pc-sized core of Milky Way dark matter halo constrained from the OGLE micro-lensing sky map
A ~200 pc-sized core of Milky Way dark matter halo constrained from the OGLE micro-lensing sky map by Shu-Rui Lin et al. on Tuesday 22 November We report the detection of a 219 $^{+10}_{-28}$ pc-sized dark matter core structure in the center of Milky Way at $68\%$ confidence level by using the micro-lensing event rate sky map data from the Optical Gravitational Lensing Experiment (OGLE) survey. For the first time, we apply the spacial information of the micro-lensing sky map and model it with the detailed Milky Way structure, the Mini Dark Matter Structure (MDMS) fraction ($f_{\rm MDMS}=\Omega_{\rm MDMS}/\Omega_{\rm...
2022-11-23
00 min
Astro arXiv | astro-ph.CO
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching by Sergio Contreras et al. on Tuesday 22 November The spatial distribution of galaxies and their gravitational lensing signal offer complementary tests of galaxy formation physics and cosmology. However, their synergy can only be fully exploited if both probes are modelled accurately and consistently. In this paper, we demonstrate that this can be achieved using an extension of Subhalo Abundance Matching, dubbed SHAMe. Specifically, we use mock catalogues built from the TNG300 hydrodynamical simulation to show that SHAMe can simultaneously model the multipoles of the redshift-space galaxy...
2022-11-23
01 min
Astro arXiv | astro-ph.CO
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching by Sergio Contreras et al. on Tuesday 22 November The spatial distribution of galaxies and their gravitational lensing signal offer complementary tests of galaxy formation physics and cosmology. However, their synergy can only be fully exploited if both probes are modelled accurately and consistently. In this paper, we demonstrate that this can be achieved using an extension of Subhalo Abundance Matching, dubbed SHAMe. Specifically, we use mock catalogues built from the TNG300 hydrodynamical simulation to show that SHAMe can simultaneously model the multipoles of the redshift-space galaxy...
2022-11-23
01 min
Astro arXiv | astro-ph.CO
Starlet higher order statistics for galaxy clustering and weak lensing
Starlet higher order statistics for galaxy clustering and weak lensing by Virginia Ajani et al. on Tuesday 22 November We present a first application to photometric galaxy clustering and weak lensing of wavelet based multi-scale higher order summary statistics: starlet peak counts and starlet $\ell_1$-norm. Peak counts are the local maxima in the map and the $\ell_1$-norm is computed via the sum of the absolute values of the starlet (wavelet) decomposition coefficients of a map, providing a fast multi-scale calculation of the pixel distribution, encoding the information of all pixels in the map. We employ the cosmo-SLICS simulations sources...
2022-11-23
00 min
Astro arXiv | astro-ph.CO
The galaxy formation origin of the lensing is low problem
The galaxy formation origin of the lensing is low problem by Jonas Chaves-Montero et al. on Tuesday 22 November Recent analyses show that $\Lambda$CDM-based models optimised to reproduce the clustering of massive galaxies overestimate their gravitational lensing by about 30\%, the so-called lensing is low problem. Using a state-of-the-art hydrodynamical simulation, we show that this discrepancy reflects shortcomings in standard galaxy-halo connection models rather than tensions within the $\Lambda$CDM paradigm itself. Specifically, this problem results from ignoring a variety of galaxy formation effects, including assembly bias, segregation of satellite galaxies relative to dark matter, and baryonic effects on the matter ...
2022-11-23
00 min
Astro arXiv | all categories
A ~200 pc-sized core of Milky Way dark matter halo constrained from the OGLE micro-lensing sky map
A ~200 pc-sized core of Milky Way dark matter halo constrained from the OGLE micro-lensing sky map by Shu-Rui Lin et al. on Tuesday 22 November We report the detection of a 219 $^{+10}_{-28}$ pc-sized dark matter core structure in the center of Milky Way at $68\%$ confidence level by using the micro-lensing event rate sky map data from the Optical Gravitational Lensing Experiment (OGLE) survey. For the first time, we apply the spacial information of the micro-lensing sky map and model it with the detailed Milky Way structure, the Mini Dark Matter Structure (MDMS) fraction ($f_{\rm MDMS}=\Omega_{\rm MDMS}/\Omega_{\rm...
2022-11-23
00 min
Astro arXiv | all categories
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching by Sergio Contreras et al. on Tuesday 22 November The spatial distribution of galaxies and their gravitational lensing signal offer complementary tests of galaxy formation physics and cosmology. However, their synergy can only be fully exploited if both probes are modelled accurately and consistently. In this paper, we demonstrate that this can be achieved using an extension of Subhalo Abundance Matching, dubbed SHAMe. Specifically, we use mock catalogues built from the TNG300 hydrodynamical simulation to show that SHAMe can simultaneously model the multipoles of the redshift-space galaxy...
2022-11-23
01 min
Astro arXiv | all categories
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching
Consistent and simultaneous modelling of galaxy clustering and galaxy-galaxy lensing with Subhalo Abundance Matching by Sergio Contreras et al. on Tuesday 22 November The spatial distribution of galaxies and their gravitational lensing signal offer complementary tests of galaxy formation physics and cosmology. However, their synergy can only be fully exploited if both probes are modelled accurately and consistently. In this paper, we demonstrate that this can be achieved using an extension of Subhalo Abundance Matching, dubbed SHAMe. Specifically, we use mock catalogues built from the TNG300 hydrodynamical simulation to show that SHAMe can simultaneously model the multipoles of the redshift-space galaxy...
2022-11-23
01 min
Astro arXiv | all categories
Starlet higher order statistics for galaxy clustering and weak lensing
Starlet higher order statistics for galaxy clustering and weak lensing by Virginia Ajani et al. on Tuesday 22 November We present a first application to photometric galaxy clustering and weak lensing of wavelet based multi-scale higher order summary statistics: starlet peak counts and starlet $\ell_1$-norm. Peak counts are the local maxima in the map and the $\ell_1$-norm is computed via the sum of the absolute values of the starlet (wavelet) decomposition coefficients of a map, providing a fast multi-scale calculation of the pixel distribution, encoding the information of all pixels in the map. We employ the cosmo-SLICS simulations sources...
2022-11-23
00 min
Astro arXiv | all categories
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments by Eileen Sophie Giesel et al. on Tuesday 22 November The Etherington distance duality relation is well-established for metric theories of gravity, and confirms the duality between the luminosity distance and the angular diameter distance through the conservation of surface brightness. A violation of the Etherington distance duality due to lensing in a non-metric spacetime would lead to fluctuations in surface brightness of galaxies. Likewise, fluctuations of the surface brightness can arise in classical astrophysics as a consequence of intrinsic tidal interaction of galaxies with their environment. Therefore, we study...
2022-11-23
00 min
Astro arXiv | all categories
The galaxy formation origin of the lensing is low problem
The galaxy formation origin of the lensing is low problem by Jonas Chaves-Montero et al. on Tuesday 22 November Recent analyses show that $\Lambda$CDM-based models optimised to reproduce the clustering of massive galaxies overestimate their gravitational lensing by about 30\%, the so-called lensing is low problem. Using a state-of-the-art hydrodynamical simulation, we show that this discrepancy reflects shortcomings in standard galaxy-halo connection models rather than tensions within the $\Lambda$CDM paradigm itself. Specifically, this problem results from ignoring a variety of galaxy formation effects, including assembly bias, segregation of satellite galaxies relative to dark matter, and baryonic effects on the matter ...
2022-11-23
00 min
Astro arXiv | all categories
Starlet higher order statistics for galaxy clustering and weak lensing
Starlet higher order statistics for galaxy clustering and weak lensing by Virginia Ajani et al. on Monday 21 November We present a first application to photometric galaxy clustering and weak lensing of wavelet based multi-scale higher order summary statistics: starlet peak counts and starlet $\ell_1$-norm. Peak counts are the local maxima in the map and the $\ell_1$-norm is computed via the sum of the absolute values of the starlet (wavelet) decomposition coefficients of a map, providing a fast multi-scale calculation of the pixel distribution, encoding the information of all pixels in the map. We employ the cosmo-SLICS simulations sources...
2022-11-22
00 min
Astro arXiv | astro-ph.GA
A ~200 pc-sized core of Milky Way dark matter halo constrained from the OGLE micro-lensing sky map
A ~200 pc-sized core of Milky Way dark matter halo constrained from the OGLE micro-lensing sky map by Shu-Rui Lin et al. on Monday 21 November We report the detection of a 219 $^{+10}_{-28}$ pc-sized dark matter core structure in the center of Milky Way at $68\%$ confidence level by using the micro-lensing event rate sky map data from the Optical Gravitational Lensing Experiment (OGLE) survey. For the first time, we apply the spacial information of the micro-lensing sky map and model it with the detailed Milky Way structure, the Mini Dark Matter Structure (MDMS) fraction ($f_{\rm MDMS}=\Omega_{\rm MDMS}/\Omega_{\rm...
2022-11-22
00 min
Astro arXiv | astro-ph.CO
Starlet higher order statistics for galaxy clustering and weak lensing
Starlet higher order statistics for galaxy clustering and weak lensing by Virginia Ajani et al. on Monday 21 November We present a first application to photometric galaxy clustering and weak lensing of wavelet based multi-scale higher order summary statistics: starlet peak counts and starlet $\ell_1$-norm. Peak counts are the local maxima in the map and the $\ell_1$-norm is computed via the sum of the absolute values of the starlet (wavelet) decomposition coefficients of a map, providing a fast multi-scale calculation of the pixel distribution, encoding the information of all pixels in the map. We employ the cosmo-SLICS simulations sources...
2022-11-22
00 min
Astro arXiv | astro-ph.CO
Detecting deviations from Gaussianity in high-redshift CMB lensing maps
Detecting deviations from Gaussianity in high-redshift CMB lensing maps by Zhuoqi Zhang et al. on Monday 21 November While the probability density function (PDF) of the cosmic microwave background (CMB) convergence field approximately follows a Gaussian distribution, small contributions from structures at low redshifts make the overall distribution slightly non-Gaussian. Some of this late-time component can be modelled using the distribution of galaxies and subtracted off from the original CMB lensing map to produce a map of matter distribution at high redshifts. Using this high-redshift mass map, we are able to directly study the early phases of structure formation and look...
2022-11-22
00 min
Astro arXiv | all categories
Void Lensing in Cubic Galileon Gravity
Void Lensing in Cubic Galileon Gravity by Chen Su et al. on Monday 21 November Weak lensing studies via cosmic voids are a promising probe of Modified Gravity (MG). The Excess Surface mass Density (ESD) is widely used as a lensing statistics in weak lensing researches. In this paper we use the ray-tracing method to study the ESD around voids in simulations based on the Cubic Galileon (CG) gravity. With the compilation of N-body simulation and ray-tracing method, changes on the structure formation and deflection angle resulting from MG can both be considered, making the extraction of lensing signals more realistic...
2022-11-22
00 min
Astro arXiv | all categories
Detecting deviations from Gaussianity in high-redshift CMB lensing maps
Detecting deviations from Gaussianity in high-redshift CMB lensing maps by Zhuoqi Zhang et al. on Monday 21 November While the probability density function (PDF) of the cosmic microwave background (CMB) convergence field approximately follows a Gaussian distribution, small contributions from structures at low redshifts make the overall distribution slightly non-Gaussian. Some of this late-time component can be modelled using the distribution of galaxies and subtracted off from the original CMB lensing map to produce a map of matter distribution at high redshifts. Using this high-redshift mass map, we are able to directly study the early phases of structure formation and look...
2022-11-22
00 min
Astro arXiv | all categories
The galaxy formation origin of the lensing is low problem
The galaxy formation origin of the lensing is low problem by Jonas Chaves-Montero et al. on Monday 21 November Recent analyses show that $\Lambda$CDM-based models optimised to reproduce the clustering of massive galaxies overestimate their gravitational lensing by about 30\%, the so-called lensing is low problem. Using a state-of-the-art hydrodynamical simulation, we show that this discrepancy reflects shortcomings in standard galaxy-halo connection models rather than tensions within the $\Lambda$CDM paradigm itself. Specifically, this problem results from ignoring a variety of galaxy formation effects, including assembly bias, segregation of satellite galaxies relative to dark matter, and baryonic effects on the matter ...
2022-11-22
00 min
Astro arXiv | astro-ph.CO
The galaxy formation origin of the lensing is low problem
The galaxy formation origin of the lensing is low problem by Jonas Chaves-Montero et al. on Monday 21 November Recent analyses show that $\Lambda$CDM-based models optimised to reproduce the clustering of massive galaxies overestimate their gravitational lensing by about 30\%, the so-called lensing is low problem. Using a state-of-the-art hydrodynamical simulation, we show that this discrepancy reflects shortcomings in standard galaxy-halo connection models rather than tensions within the $\Lambda$CDM paradigm itself. Specifically, this problem results from ignoring a variety of galaxy formation effects, including assembly bias, segregation of satellite galaxies relative to dark matter, and baryonic effects on the matter ...
2022-11-22
00 min
Astro arXiv | astro-ph.CO
Void Lensing in Cubic Galileon Gravity
Void Lensing in Cubic Galileon Gravity by Chen Su et al. on Monday 21 November Weak lensing studies via cosmic voids are a promising probe of Modified Gravity (MG). The Excess Surface mass Density (ESD) is widely used as a lensing statistics in weak lensing researches. In this paper we use the ray-tracing method to study the ESD around voids in simulations based on the Cubic Galileon (CG) gravity. With the compilation of N-body simulation and ray-tracing method, changes on the structure formation and deflection angle resulting from MG can both be considered, making the extraction of lensing signals more realistic...
2022-11-22
00 min
Astro arXiv | all categories
A ~200 pc-sized core of Milky Way dark matter halo constrained from the OGLE micro-lensing sky map
A ~200 pc-sized core of Milky Way dark matter halo constrained from the OGLE micro-lensing sky map by Shu-Rui Lin et al. on Monday 21 November We report the detection of a 219 $^{+10}_{-28}$ pc-sized dark matter core structure in the center of Milky Way at $68\%$ confidence level by using the micro-lensing event rate sky map data from the Optical Gravitational Lensing Experiment (OGLE) survey. For the first time, we apply the spacial information of the micro-lensing sky map and model it with the detailed Milky Way structure, the Mini Dark Matter Structure (MDMS) fraction ($f_{\rm MDMS}=\Omega_{\rm MDMS}/\Omega_{\rm...
2022-11-22
00 min
ASTROPHYSICAST
REWIND: 2021 and Gravitational Lensing
2021 REWIND of the highlights from the field of astronomy. Gravitational lensing: When light passes one of these objects, such as a cluster of galaxies, its path is changed slightly. This effect, called gravitational lensing, is only visible in rare cases and only the best telescopes can observe the related phenomena. Smaller objects, like individual stars, can also act as gravitational lenses when they pass in front of more distant stars.
2022-01-02
07 min
Best Show Ever
54. Carla Baudrons, Vicki Lensing, & Michael Lensing
On this week’s episode we talk about putting art to work with Carla Baudrons, founder of Art Office which is a 12-week accountability program designed to help artists. We also hear from Michael and Vicki Lensing, co-owners of Lensing funeral home. The episode features music by Gossip Cult, Alex Body, and “Sad Stories” by Anthony Worden & the Illiterati for our Song of the Week. Thank you to Martin Construction for sponsoring this episode. Ongoing support comes from the National Endowment for the Arts, the Iowa Arts Council, and from the United States Region...
2021-09-03
36 min
The Minerals and Royalties Podcast
Minerals & Royalties Podcast with Collin Lensing, COO & General Counsel, Vendera Resources
Collin Lensing joins us from Vendera Resources, a private oil & gas company that that looks to acquire a mix of operated and non-operated WI% along with Minerals in basins across the US. During the Episode, Collin talks more in-depth about Vendera’s strategy and also gives some insight on the current investment sentiment towards oil & gas for endowments and foundations as Vendera continues to raise direct from institutions.
2020-11-03
40 min
It's Us Podcast
Fit For Me by Courtney: There is Always Room For the Best
Effective and efficient fitness, simplified nutrition, networking, productivity hacks, chasing big dreams and more - our first interview is SO good and jammed pack with valuable takeaways. Courtney, founder of Fit For Me by Courtney recently launched her own workout app and is making huge strides in the health and wellness space. In this episode Courtney shares her inspiring story as an entrepreneur, her unique perspective on fitness and longevity, tips for staying on track with your goals, as well as the key to standing out and making your way in your industry. Learn more about Courtney, follow her...
2020-07-14
1h 13
It's Us Podcast
GLOW GUIDE: How to Achieve Glowing Skin for Your Wedding
Alexa is unpacking the six steps she took to achieve a healthy, dewey, and glowing complexion on her wedding day. Whether or not you're prepping for a wedding, these tips and products will you help you achieve a dreamy complexion wherever you're at. You can read more about Alexa's wedding skin prep journey right here! --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-07-10
12 min
It's Us Podcast
Big Announcement(s), Midwest Scuba Diving & What's in Store for It's Us
Announcing not one, but several things, one of which was even news to Alexa! Plus, discussing Jon's recent and future scuba diving adventures (in the midwest, what?!) and new segments that are coming to the show. --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-07-01
26 min
It's Us Podcast
WE'RE BACK: major life updates
We're finally back with some fresh content and SO many life updates for you guys from Jon's career switch to Alexa's re-brand and deciding where we're going to live - this one is packed of conversation and is extremely unfiltered, AKA a must-listen. --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-06-18
47 min
It's Us Podcast
5 Secrets to Becoming a Runner
In this solo episode Alexa uses her running background and expertise to break down the 5 secrets that will help you become a runner - no matter how much you think you hate running or that being a runner is just not possible for you - she swears, it is! --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-03-11
16 min
It's Us Podcast
How to start shooting videos - all the basics, settings, and cameras
Learn the very basic necessities about how to begin shooting your own videos. We review everything from the on-camera settings to explaining FPS (frames per second) and how to export your videos for the best viewing quality. --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-02-11
20 min
It's Us Podcast
The Ins and Outs of The Keto Diet
In this solo episode with Jon, he breaks down the science, pros, and cons of the popular ketogenic diet. --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-02-06
18 min
It's Us Podcast
How to Schedule Your Time to Be The Most Productive
In this solo episode Alexa goes over what scheduling techniques have and haven't worked for her and the one major tip she finds to be the most helpful with productivity. --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-01-17
09 min
It's Us Podcast
Exactly How We Shoot Wedding Photos and Videos
In this Episode Jon and Alexa talk about how they got their starts in the wedding industry, their individual workflows, and get real honest about what it's like working together as a couple on wedding days. --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-01-12
29 min
It's Us Podcast
How to Fit Fitness Into Your Schedule to Ensure You Achieve Your Resolutions
This episode is a breakdown of Jon and Alexa's most practical and useful advice for never missing a workout, making sure you stay productive at the gym, and setting goals for yourself that you can actually achieve. --- Support this podcast: https://podcasters.spotify.com/pod/show/its-us/support
2020-01-12
15 min
CppCast
Boden Cross-Platform Framework
Rob and Jason are joined by Marcus Tillmanns and Tobias Lensing to talk about the Boden Cross-Platform Framework. Marcus is currently the main software developer of Boden. He has a strong background in C++ graphics and UI development. He worked with Qt for more than 10 years on audio software and embedded projects. Tobias is currently working as a software developer and product manager on Boden. He’s passionate about start-ups and entrepreneurship. Tobias also has a background as CTO in audio software, cloud technology, and web development. News Visual Studio 2019 goes live C+...
2019-04-04
48 min
CppCast
Boden Cross-Platform Framework
Rob and Jason are joined by Marcus Tillmanns and Tobias Lensing to talk about the Boden Cross-Platform Framework. Marcus is currently the main software developer of Boden. He has a strong background in C++ graphics and UI development. He worked with Qt for more than 10 years on audio software and embedded projects. Tobias is currently working as a software developer and product manager on Boden. He’s passionate about start-ups and entrepreneurship. Tobias also has a background as CTO in audio software, cloud technology, and web development. News Visual Studio 2019 goes live C++23 fullptr to...
2019-04-04
48 min
Conversations with Dez
Conversations With Dez - talking with Maria Lensing, VP Healthcare, AT&T
Dez Blanchfield gets up close & personal with Maria Lensing, VP of Healthcare Solutions, AT&T, to talk about her life, academic & professional career, her role with AT&T, and how technology is impacting Healthcare, Hospitals & Caregivers and Health services consumers, key disruptions & trends such as 5G, IoT, Smartphones, the recent AT&T Business Summit event in Dallas Fort Worth, and the upcoming Healthcare Informations Systems Society #HIMSS19 event in Orlando. For more info on AT&T’s Healthcare portfolio visit => http://bit.ly/cwd-att-healthcare
2019-02-02
47 min
5 Minutes With An Astronomer
Gravitational Lensing
This episode's question is: we understand that gravitational lensing is one of the predictions of Einstein's theory of general relativity but what is it? If you have feedback or a topic suggestion you can email us.
2018-07-03
06 min
Combat and Classics Podcast
Ep. 20: Interview With Doug Lensing
Douglas Lensing joins the show to talk about his path from the Navy to St. John's College and his paper "Passion and Mind: Homer's Formula for Victory in the Iliad." Doug joined the Navy on a Naval Special Warfare contract, but after failing to complete BUD/S went to Defense Language Institute, learned Farsi and worked at Fort Gordon, Georgia as a linguist. Doug will be starting his Ph.D. at Baylor University in Political Science in the fall of 2018. --- Support this podcast: https://podcasters.spotify.com/pod/show/brian-wilson5/support
2018-07-02
56 min
Dr Erin Explains The Universe Podcast
Gravitational Lensing in Star Trek: Discovery
In this episode, we'll discuss the method they develop in Episode 9 (mid-season finale) of Star Trek: Discovery. Gravitational Lensing and Triangulation...explained! Spoilers, and please accept my apologies for the lighting in this one.
2018-05-27
10 min
Lee Riddle, REALTOR
Lensing Building Specialties Garage Door Showroom
Did you know that Lensing Building Specialties Sells AND Installs Garage Doors? Listen to learn more!
2018-05-02
14 min
CiTR -- AstroTalk
Hubble and Gravitational Lensing
With help from the Hubble Space Telescope, scientists have viewed a distant cluster of galaxies, that has been microlensed, and then capture by the lens of HST. J143450.5+033843 lies 11 Billion light years away, and without the aid of gravitational lensing, and HST, it would not be visible. The light of the faint galaxy is being magnified by a cluster of foreground, or closer, galaxies, and without this magnification, HST would not be able to image it well. The strong gravity of the galaxy cluster acts as a magnifier, multiplying the light intensity coming from this far away galaxy. Presently, HST...
2017-07-07
27 min
Fakultät für Physik - Digitale Hochschulschriften der LMU - Teil 05/05
Weak lensing by galaxy clusters
Der Ursprung und die Entwicklung unseres Universums zeigt sich gleichermaßen in der Raumzeit selbst wie in den Strukturen, die in ihr entstehen. Galaxienhaufen sind das Ergebnis hierarchischer Strukturbildung. Sie sind die massivsten Objekte, die sich im heutigen Universum bilden konnten. Aufgrund dieser Eigenschaft ist ihre Anzahl und Struktur hochgradig abhängig von der Zusammensetzung und Evolution des Universums. Die Messung der Anzahldichte von Galaxienhaufen beruht auf Katalogen, die nach einer beobachtbaren Größe ausgewählt werden. Die Anwendung einer Massen-Observablen-Relation (MOR) erlaubt es, die beobachtete Anzahl als Funktion der Observablen und der Rotverschiebung mit Vorhersagen zu vergleichen und so kosmo...
2015-05-08
00 min
Fakultät für Physik - Digitale Hochschulschriften der LMU - Teil 05/05
Investigating galaxies in and behind Galaxy Clusters using Strong Gravitational Lensing
Gravitational Lensing is a unique technique to investigate the dark matter distribution of structures in the Universe, from galaxies, through galaxy groups, clusters, up to the large-scale structure. It allows us to map the total projected mass density of structures acting as lenses, and thus to shed light on the distribution and properties of the otherwise-invisible dark matter. Clusters of galaxies are the largest virialized structures in the universe. Gravitational lensing analysis allows us to study their mass distribution in great detail. Weak lensing probes the mass distribution in the outskirts of clusters based on a statistical analysis of the...
2015-02-24
00 min
Fakultät für Physik - Digitale Hochschulschriften der LMU - Teil 04/05
Dark matter halo properties from galaxy-galaxy lensing
Die Forschungsergebnisse der letzten Jahre haben gezeigt, dass das Universum bei weitem nicht nur aus baryonischer Materie besteht. Tatsächlich scheinen 72% aus sogenannter Dunkler Energie zu bestehen, während selbst vom verbleibenden Teil nur etwa ein Fünftel baryonischer Materie zugeordnet werden kann. Der Rest besteht aus Dunkler Materie, deren Beschaffenheit bis heute nicht mit Sicherheit geklärt ist. Ursprünglich in den Rotationskurven von Spiralgalaxien beobachtet, wurde die Notwendigkeit ihrer Existenz inzwischen auch in elliptischen Galaxien und Galaxienhaufen nachgewiesen. Tatsächlich scheint Dunkle Materie eine entscheidende Rolle in der Strukturbildung im Universum gespielt zu haben. In der Frühzeit des Uni...
2013-07-19
00 min
Free Astronomy Public Lectures
Gravitational Lensing: Einstein's Unfinished Symphony (Free Astronomy Public Lectures)
Presented by Professor Richard Ellis on 7th September 2010.In 1919, Arthur Eddington demonstrated Einsteins's prediction that the Sun's gravity deflects the path of light rays. This phenomonon, termed 'gravitational lensing' is now one of the most powerful tools of the modern astronomer. Professor Ellis reviews the history and progress in charting how dark matter is distributed and how easily galaxies can be located using gravitational lensing.
2010-09-16
00 min
Fakultät für Physik - Digitale Hochschulschriften der LMU - Teil 02/05
Gravitational Lensing in Galaxy Cluster Abell 1689
Abell 1689 is a massive galaxy cluster that has an impressive number of gravitationally lensed background galaxies. In this thesis more than 30 multiple image systems identified in A1689 are used to derive an accurate mass profile for the cluster. It is also shown how strong lensing in cluster can be used to constrain the sizes of the dark matter haloes of cluster galaxies and to place upper limits on the amount of dark substructure in clusters.
2007-04-16
00 min