Related papers: Weak Lensing Study in VOICE Survey I: Shear Measur…

Galaxy bias from the Dark Energy Survey Science Verification data: combining galaxy density maps and weak lensing maps

We measure the redshift evolution of galaxy bias for a magnitude-limited galaxy sample by combining the galaxy density maps and weak lensing shear maps for a $\sim$116 deg$^{2}$ area of the Dark Energy Survey (DES) Science Verification…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-01 C. Chang , A. Pujol , E. Gaztanaga , A. Amara , A. Refregier , D. Bacon , M. R. Becker , C. Bonnett , J. Carretero , F. J. Castander , M. Crocce , P. Fosalba , T. Giannantonio , W. Hartley , M. Jarvis , T. Kacprzak , A. J. Ross , E. Sheldon , M. A. Troxel , V. Vikram , J. Zuntz , T. M. C. Abbott , F. B. Abdalla , S. Allam , J. Annis , A. Benoit-Levy , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , D. Capozzi , A. Carnero Rosell , M. Carrasco Kind , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , S. Desai , H. T. Diehl , J. P. Dietrich , P. Doel , T. F. Eifler , J. Estrada , A. E. Evrard , B. Flaugher , J. Frieman , D. A. Goldstein , D. Gruen , R. A. Gruendl , G. Gutierrez , K. Honscheid , B. Jain , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , T. S. Li , M. Lima , J. L. Marshall , P. Martini , P. Melchior , C. J. Miller , R. Miquel , J. J. Mohr , R. C. Nichol , B. Nord , R. Ogando , A. A. Plazas , K. Reil , A. K. Romer , A. Roodman , E. S. Rykoff , E. Sanchez , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , A. R. Walker

Deep-Field Analytical Calibration

The next generation of imaging surveys, including the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), Euclid, and the Nancy Grace Roman Space Telescope, will place unprecedented constraints on cosmology using weak…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-08 Andy Park , Xiangchong Li , Rachel Mandelbaum , Matthew Becker

UNIONS-3500 Weak Lensing: I. A Galaxy Shape Catalogue in the Northern Sky

Weak gravitational lensing has become a widely used effect to characterise the dark-matter distribution on large scales in the Universe by measuring galaxy ellipticities and their statistical correlations. We present the first weak…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-14 F. Hervas-Peters , S. Guerrini , M. Kilbinger , L. Baumont , A. Guinot , C. Daley , C. Bonini , A. Wittje , C. Murray , L. W. K. Goh , A. Paradis , A. Tersenov , M. J. Hudson , L. Van Waerbeke , H. Hildebrandt , S. Fabbro , J. -C. Cuillandre , A. W. McConnachie

Testing Velocity-Field Lensing on IllustrisTNG Galaxies

Weak gravitational lensing shear could be measured far more precisely if information about unlensed attributes of source galaxies were available. Disk galaxy velocity fields supply such information, at least in principle, with idealized…

Instrumentation and Methods for Astrophysics · Physics 2023-03-15 Jean Donet , David Wittman

Dark Energy Survey Year 6 Results: Cosmological Constraints from Cosmic Shear

We present legacy cosmic shear measurements and cosmological constraints using six years of Dark Energy Survey imaging data. From these data, we study ~140 million galaxies (8.29 galaxies/arcmin$^2$) that are 50% complete at i=24.0 and…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-11 DES Collaboration , T. M. C. Abbott , M. Aguena , A. Alarcon , O. Alves , A. Amon , D. Anbajagane , F. Andrade-Oliveira , W. d'Assignies , S. Avila , D. Bacon , J. Beas-Gonzalez , K. Bechtol , M. R. Becker , G. M. Bernstein , J. Blazek , S. Bocquet , D. Brooks , H. Camacho , G. Camacho-Ciurana , R. Camilleri , G. Campailla , A. Campos , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , R. Cawthon , C. Chang , A. Choi , J. M. Coloma-Nadal , C. Conselice , L. N. da Costa , M. Costanzi , M. Crocce , T. M. Davis , J. De Vicente , D. L. DePoy , J. DeRose , S. Desai , H. T. Diehl , P. Doel , C. Doux , A. Drlica-Wagner , T. F. Eifler , S. Everett , A. E. Evrard , A. Ferté , B. Flaugher , P. Fosalba , O. Friedrich , J. Frieman , J. García-Bellido , M. Gatti , G. Giannini , P. Giles , K. Glazebrook , D. Gruen , R. A. Gruendl , G. Gutierrez , I. Harrison , W. G. Hartley , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , M. Jarvis , N. Jeffrey , T. Jeltema , T. Kacprzak , S. Kent , E. Krause , O. Lahav , S. Lee , E. Legnani , H. Lin , J. L. Marshall , S. Mau , J. Mena-Fernández , F. Menanteau , R. Miquel , J. J. Mohr , J. Muir , J. Myles , R. C. Nichol , R. L. C. Ogando , A. Palmese , M. Paterno , W. J. Percival , D. Petravick , A. A. Plazas Malagón , A. Porredon , J. Prat , C. Preston , M. Raveri , M. Rodriguez-Monroy , A. K. Romer , A. Roodman , E. S. Rykoff , S. Samuroff , C. Sánchez , E. Sanchez , D. Sanchez Cid , T. Schutt , I. Sevilla-Noarbe , E. Sheldon , T. Shin , M. E. da Silva Pereira , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , M. Tabbutt , G. Tarle , D. Thomas , C. To , M. A. Troxel , V. Vikram , M. Vincenzi , N. Weaverdyck , J. Weller , P. Wiseman , M. Yamamoto , B. Yanny , B. Yin , J. Zuntz

The three-year shear catalog of the Subaru Hyper Suprime-Cam SSP Survey

We present the galaxy shear catalog that will be used for the three-year cosmological weak gravitational lensing analyses using data from the Wide layer of the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) Survey. The galaxy shapes…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-03 Xiangchong Li , Hironao Miyatake , Wentao Luo , Surhud More , Masamune Oguri , Takashi Hamana , Rachel Mandelbaum , Masato Shirasaki , Masahiro Takada , Robert Armstrong , Arun Kannawadi , Satoshi Takita , Satoshi Miyazaki , Atsushi J. Nishizawa , Andrés A. Plazas Malagón , Michael A. Strauss , Masayuki Tanaka , Naoki Yoshida

Cosmological Studies from HSC-SSP Tomographic Weak Lensing Peak Abundances

We perform weak lensing tomographic peak studies using the first-year shear data from Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) survey. The effective area used in our analyses after field selection, mask and boundary exclusions…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-26 Xiangkun Liu , Shuo Yuan , Chuzhong Pan , Tianyu Zhang , Qiao Wang , Zuhui Fan

Dark Energy Survey Year 6 Results: Redshift Calibration of the Weak Lensing Source Galaxies

Determining the distribution of redshifts for galaxies in wide-field photometric surveys is essential for robust cosmological studies of weak gravitational lensing. We present the methodology, calibrated redshift distributions, and…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-28 B. Yin , A. Amon , A. Campos , M. A. Troxel , W. d'Assignies , G. M. Bernstein , G. Camacho-Ciurana , S. Mau , M. R. Becker , G. Giannini , A. Alarcón , D. Gruen , J. McCullough , M. Yamamoto , D. Anbajagane , S. Dodelson , C. Sánchez , J. Myles , J. Prat , C. Chang , M. Crocce , K. Bechtol , A. Ferté , M. Gatti , N. MacCrann , R. Marco , A. Porredón , D. Sánchez Cid , T. Schutt , M. Tabbut , C. To , T. Abbott , M. Aguena , O. Alves , D. Bacon , S. Bocquet , D. Brooks , R. Camilleri , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. Castander , R. Cawthon , C. Conselice , L. da Costa , M. da Silva Pereira , T. Davis , J. De Vicente , S. Desai , H. Diehl , C. Doux , A. Drlica-Wagner , T. Eifler , J. Elvin-Poole , S. Everett , B. Flaugher , P. Fosalba , D. Francis de Souza , J. Frieman , J. Garcia-Bellido , E. Gaztañaga , P. Giles , G. Gutierrez , S. Hinton , D. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. James , K. Kuehn , S. Lee , H. Lin , J. Marshall , J. Mena-Fernández , F. Menanteau , R. Miquel , J. Muir , R. Ogando , A. Palmese , D. Petravick , A. Plazas Malagón , A. Roodman , R. Rosenfeld , S. Samuroff , E. Sánchez , I. Sevilla , E. Sheldon , T. Shin , M. Smith , E. Suchyta , M. Swanson , G. Tarlé , D. Thomas , V. Vikram , A. Walker , P. Wiseman

Dark Energy Survey Year 6 Results: Galaxy-galaxy lensing

We present galaxy--galaxy lensing (GGL) measurements from the full six years of data from the Dark Energy Survey (DES Y6), covering $4031\,\mathrm{deg}^2$ and used in the DES Y6 $3\times2$pt cosmological analysis. We use the MagLim++ lens…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-22 G. Giannini , G. Camacho-Ciurana , A. Whyley , J. Prat , J. Blazek , C. Sánchez , G. Zacharegkas , A. Alarcon , E. Legnani , A. Amon , D. Anbajagane , S. Avila , K. Bechtol , M. R. Becker , G. M. Bernstein , S. Bocquet , A. Campos , A. Carnero Rosell , R. Cawthon , C. Chang , M. Crocce , W. d'Assignies , J. De Vicente , A. Drlica-Wagner , S. Elvin-Poole , A. Ferté , M. Gatti , D. Gruen , M. Jarvis , M. Manera , S. Mau , J. McCullough , F. Menanteau , J. Myles , A. Porredon , M. Rodriguez-Monroy , A. Roodman , E. S. Rykoff , S. Samuroff , D. Sanchez Cid , I. Sevilla-Noarbe , T. Schutt , M. A. Troxel , N. Weaverdyck , M. Yamamoto , B. Yin , T. M. C. Abbott , M. Aguena , S. Allam , O. Alves , F. Andrade-Oliveira , D. Bacon , E. Bertin , D. Brooks , H. Camacho , J. Carretero , L. N. da Costa , M. E. da Silva Pereira , T. M. Davis , D. L. DePoy , S. Desai , H. T. Diehl , P. Doel , C. Doux , T. F. Eifler , S. Everett , A. E. Evrard , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , P. Giles , K. Glazebrook , I. Harrison , W. G. Hartley , K. Herner , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , B. Jain , D. J. James , N. Jeffrey , T. Kacprzak , S. Kent , E. Krause , O. Lahav , S. Lee , J. L. Marshall , J. Mena-Fernández , R. Miquel , J. J. Mohr , J. Muir , R. C. Nichol , R. L. C. Ogando , A. Palmese , M. Paterno , W. J. Percival , D. Petravick , A. A. Plazas Malagón , M. Raveri , R. Rosenfeld , E. Sanchez , E. Sheldon , T. Shin , J. Allyn. Smith , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , D. L. Tucker , V. Vikram , M. Vincenzi , A. R. Walker , P. Wiseman , B. Yanny

Galaxy-Galaxy Lensing in the DES Science Verification Data

We present galaxy-galaxy lensing results from 139 square degrees of Dark Energy Survey (DES) Science Verification (SV) data. Our lens sample consists of red galaxies, known as redMaGiC, which are specifically selected to have a low…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-11 J. Clampitt , C. Sánchez , J. Kwan , E. Krause , N. MacCrann , Y. Park , M. A. Troxel , B. Jain , E. Rozo , E. S. Rykoff , R. H. Wechsler , J. Blazek , C. Bonnett , M. Crocce , Y. Fang , E. Gaztanaga , D. Gruen , M. Jarvis , R. Miquel , J. Prat , A. J. Ross , E. Sheldon , J. Zuntz , T. M. C. Abbott , F. B. Abdalla , R. Armstrong , M. R. Becker , A. Benoit-Lévy , G. M. Bernstein , E. Bertin , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , S. Desai , H. T. Diehl , J. P. Dietrich , P. Doel , J. Estrada , A. E. Evrard , A. Fausti Neto , B. Flaugher , P. Fosalba , J. Frieman , R. A. Gruendl , K. Honscheid , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , M. March , J. L. Marshall , P. Martini , P. Melchior , J. J. Mohr , R. C. Nichol , B. Nord , A. A. Plazas , A. K. Romer , E. Sanchez , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , V. Vikram , A. R. Walker

Prospects for radio weak lensing: studies using LOFAR observations in the ELAIS-N1 field

We carry out a shape and weak lensing analysis of Low Frequency Array (LOFAR) radio sources and Hyper Suprime-Cam (HSC) optical sources within the European Large Area Infrared Space Observatory Survey-North 1 (ELAIS-N1) field. Using HSC…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-27 Jinyi Liu , Reinout van Weeren , Huub Rottgering , Konrad Kuijken

Weak Lensing Results from the 75 Square Degree CTIO Survey

We measure seeing-corrected ellipticities for 2 x 10^6 galaxies with magnitude R<23 in 12 widely separated fields totalling 75 deg^2 of sky. At angular scales >30\arcmin, ellipticity correlations are detected at high significance and…

Astrophysics · Physics 2015-06-24 M. Jarvis , G. Bernstein , B. Jain , P. Fischer , D. Smith , J. A. Tyson , D. Wittman

Shapes and Shears, Stars and Smears: Optimal Measurements for Weak Lensing

We present the theoretical and analytical bases of optimal techniques to measure weak gravitational shear from images of galaxies. We first characterize the geometric space of shears and ellipticity, then use this geometric interpretation…

Astrophysics · Physics 2009-11-06 G. M. Bernstein , M. Jarvis

Optimal Weak Lensing Skewness Measurements

Weak lensing measurements are entering a precision era to statistically map the distribution of matter in the universe. The most common measurement has been of the variance of the projected surface density of matter, which corresponds to…

Astrophysics · Physics 2009-11-07 Tong-Jie Zhang , Ue-Li Pen , Pengjie Zhang , John Dubinski

Cosmic Shear Systematics: Software-Hardware Balance

Cosmic shear measurements rely on our ability to measure and correct the Point Spread Function (PSF) of the observations. This PSF is measured using stars in the field, which give a noisy measure at random points in the field. Using Wiener…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 A. Amara , A. Refregier , S. Paulin-Henriksson

KiDS-450: Cosmological Constraints from Weak Lensing Peak Statistics-I: Inference from Analytical Prediction of High Signal-to-Noise Ratio Convergence Peaks

This paper is the first of a series of papers constraining cosmological parameters with weak lensing peak statistics using $\sim 450~\rm deg^2$ of imaging data from the Kilo Degree Survey (KiDS-450). We measure high signal-to-noise ratio…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-20 HuanYuan Shan , Xiangkun Liu , Hendrik Hildebrandt , Chuzhong Pan , Nicolas Martinet , Zuhui Fan , Peter Schneider , Marika Asgari , Joachim Harnois-Déraps , Henk Hoekstra , Angus Wright , Jörg P. Dietrich , Thomas Erben , Fedor Getman , Aniello Grado , Catherine Heymans , Dominik Klaes , Konrad Kuijken , Julian Merten , Emanuella Puddu , Mario Radovich , Qiao Wang

The COSMOS Density Field: A Reconstruction Using Both Weak Lensing and Galaxy Distributions

The COSMOS field has been the subject of a wide range of observations, with a number of studies focusing on reconstructing the 3D dark matter density field. Typically, these studies have focused on one given method or tracer. In this paper,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 A. Amara , S. Lilly , K. Kovac , J. Rhodes , R. Massey , G. Zamorani , C. M. Carollo , T. Contini , J. -P. Kneib , O. Le Fevre , V. Mainieri , A. Renzini , M. Scodeggio , S. Bardelli , M. Bolzonella , A. Bongiorno , K. Caputi , O. Cucciati , S. de la Torre , L. de Ravel , P. Franzetti , B. Garilli , A. Iovino , P. Kampczyk , C. Knobel , F. Lamareille , J. -F. Le Borgne , V. Le Brun , C. Maier , M. Mignoli , R. Pello , Y. Peng , E. Perez Montero , V. Presotto , J. Silverman , M. Tanaka , L. Tasca , L. Tresse , D. Vergani , E. Zucca , L. Barnes , R. Bordoloi , A. Cappi , A. Cimatti , G. Coppa , A. Koekoemoer , C. Lopez-Sanjuan , H. J. McCracken , M. Moresco , P. Nair , L. Pozzetti , N. Welikala

Weak gravitational lensing shear measurement with FPFS: analytical mitigation of noise bias and selection bias

Dedicated 'Stage IV' observatories will soon observe the entire extragalactic sky, to measure the 'cosmic shear' distortion of galaxy shapes by weak gravitational lensing. To measure the apparent shapes of those galaxies, we present an…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-08 Xiangchong Li , Yin Li , Richard Massey

Hyper Suprime-Cam Y3 results: photo-$z$ bias calibration with lensing shear ratios and cosmological constraints from cosmic shear

We present an independent calibration of the photometric redshift (photo-$z$) distributions for source galaxies in the HSC-Y3 weak lensing survey using small-scale galaxy-galaxy lensing. By measuring the tangential shear around…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-31 Divya Rana , Surhud More , Hironao Miyatake , Sunao Sugiyama , Tianqing Zhang , Masato Shirasaki

Large-Scale Cosmic Shear Measurements

We present estimates of the gravitational lensing shear variance obtained from images taken at the CFHT using the UH8K CCD mosaic camera. Six fields were observed for a total of 1 hour each in V and I, resulting in catalogs containing…

Astrophysics · Physics 2007-05-23 Nick Kaiser , Gillian Wilson , Gerard A. Luppino