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This work, together with its companion paper, Secco and Samuroff et al. (2021), presents the Dark Energy Survey Year 3 cosmic shear measurements and cosmological constraints based on an analysis of over 100 million source galaxies. With the…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-03 A. Amon , D. Gruen , M. A. Troxel , N. MacCrann , S. Dodelson , A. Choi , C. Doux , L. F. Secco , S. Samuroff , E. Krause , J. Cordero , J. Myles , J. DeRose , R. H. Wechsler , M. Gatti , A. Navarro-Alsina , G. M. Bernstein , B. Jain , J. Blazek , A. Alarcon , A. Ferté , M. Raveri , P. Lemos , A. Campos , J. Prat , C. Sánchez , M. Jarvis , O. Alves , F. Andrade-Oliveira , E. Baxter , K. Bechtol , M. R. Becker , S. L. Bridle , H. Camacho , A. Campos , A. Carnero Rosell , M. Carrasco Kind , R. Cawthon , C. Chang , R. Chen , P. Chintalapati , M. Crocce , C. Davis , H. T. Diehl , A. Drlica-Wagner , K. Eckert , T. F. Eifler , J. Elvin-Poole , S. Everett , X. Fang , P. Fosalba , O. Friedrich , G. Giannini , R. A. Gruendl , I. Harrison , W. G. Hartley , K. Herner , H. Huang , E. M. Huff , D. Huterer , N. Kuropatkin , P. -F. Leget , A. R. Liddle , J. McCullough , J. Muir , S. Pandey , Y. Park , A. Porredon , A. Refregier , R. P. Rollins , A. Roodman , R. Rosenfeld , A. J. Ross , E. S. Rykoff , J. Sanchez , I. Sevilla-Noarbe , E. Sheldon , T. Shin , A. Troja , I. Tutusaus , T. N. Varga , N. Weaverdyck , B. Yanny , B. Yin , Y. Zhang , J. Zuntz , M. Aguena , S. Allam , J. Annis , D. Bacon , E. Bertin , S. Bhargava , D. Brooks , E. Buckley-Geer , D. L. Burke , J. Carretero , M. Costanzi , L. N. da Costa , M. E. S. Pereira , J. De Vicente , S. Desai , J. P. Dietrich , P. Doel , I. Ferrero , B. Flaugher , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , J. Gschwend , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , B. Hoyle , D. J. James , R. Kron , K. Kuehn , O. Lahav , M. Lima , H. Lin , M. A. G. Maia , J. L. Marshall , P. Martini , P. Melchior , F. Menanteau , R. Miquel , J. J. Mohr , R. Morgan , R. L. C. Ogando , A. Palmese , F. Paz-Chinchón , D. Petravick , A. Pieres , A. A. Plazas Malagón , A. K. Romer , E. Sanchez , V. Scarpine , M. Schubnell , S. Serrano , M. Smith , M. Soares-Santos , E. Suchyta , G. Tarle , D. Thomas , C. To , J. Weller

We perform a blinded cosmology analysis with cosmic shear two-point correlation functions (2PCFs) measured from more than 25 million galaxies in the Hyper Suprime-Cam three-year shear catalog in four tomographic redshift bins ranging from…

We present photometric redshift estimates for galaxies used in the weak lensing analysis of the Dark Energy Survey Science Verification (DES SV) data. Four model- or machine learning-based photometric redshift methods -- ANNZ2, BPZ…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-07 C. Bonnett , M. A. Troxel , W. Hartley , A. Amara , B. Leistedt , M. R. Becker , G. M. Bernstein , S. Bridle , C. Bruderer , M. T. Busha , M. Carrasco Kind , M. J. Childress , F. J. Castander , C. Chang , M. Crocce , T. M. Davis , T. F. Eifler , J. Frieman , C. Gangkofner , E. Gaztanaga , K. Glazebrook , D. Gruen , T. Kacprzak , A. King , J. Kwan , O. Lahav , G. Lewis , C. Lidman , H. Lin , N. MacCrann , R. Miquel , C. R. O'Neill , A. Palmese , H. V. Peiris , A. Refregier , E. Rozo , E. S. Rykoff , I. Sadeh , C. Sánchez , E. Sheldon , S. Uddin , R. H. Wechsler , J. Zuntz , T. Abbott , F. B. Abdalla , S. Allam , R. Armstrong , M. Banerji , A. H. Bauer , A. Benoit-Lévy , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , D. Capozzi , A. Carnero Rosell , J. Carretero , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , D. L. DePoy , S. Desai , H. T. Diehl , J. P. Dietrich , P. Doel , A. Fausti Neto , E. Fernandez , B. Flaugher , P. Fosalba , D. W. Gerdes , R. A. Gruendl , K. Honscheid , B. Jain , D. J. James , M. Jarvis , A. G. Kim , K. Kuehn , N. Kuropatkin , T. S. Li , M. Lima , M. A. G. Maia , M. March , J. L. Marshall , P. Martini , P. Melchior , C. J. Miller , E. Neilsen , R. C. Nichol , B. Nord , R. Ogando , A. A. Plazas , K. Reil , A. K. Romer , A. Roodman , M. Sako , E. Sanchez , B. Santiago , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , J. Thaler , D. Thomas , V. Vikram , A. R. Walker

Current constraints on dark matter density profiles from weak lensing are typically limited to radial scales greater than 50-100 kpc. In this paper, we explore the possibility of probing the very inner regions of galaxy/halo density…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-15 Masato I. N. Kobayashi , Alexie Leauthaud , Surhud More , Nobuhiro Okabe , Clotilde Laigle , Jason Rhodes , Tsutomu T. Takeuchi

Accurate photometric redshifts are among the key requirements for precision weak lensing measurements. Both the large size of the Sloan Digital Sky Survey (SDSS) and the existence of large spectroscopic redshift samples that are…

This paper extends the method introduced in Rivi et al. (2016b) to measure galaxy ellipticities in the visibility domain for radio weak lensing surveys. In that paper we focused on the development and testing of the method for the simple…

Instrumentation and Methods for Astrophysics · Physics 2018-04-16 Marzia Rivi , Lance Miller

We perform a combined analysis of cosmic shear tomography, galaxy-galaxy lensing tomography, and redshift-space multipole power spectra (monopole and quadrupole) using 450 deg$^2$ of imaging data by the Kilo Degree Survey (KiDS) overlapping…

Kinematic weak lensing describes the distortion of a galaxy's projected velocity field due to lensing shear, an effect recently reported for the first time by Gurri et al. based on a sample of 18 galaxies at $z \sim 0.1$. In this paper, we…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-08 Brian DiGiorgio , Kevin Bundy , Kyle B. Westfall , Alexie Leauthaud , David Stark

We present SKiLLS, a suite of multi-band image simulations for the weak lensing analysis of the complete Kilo-Degree Survey (KiDS), dubbed KiDS-Legacy analysis. The resulting catalogues enable joint shear and redshift calibration, enhancing…

The effective redshift distribution $n(z)$ of galaxies is a critical component in the study of weak gravitational lensing. Here, we introduce a new method for determining $n(z)$ for weak lensing surveys based on high-quality redshifts and…

A likelihood-based method for measuring weak gravitational lensing shear in deep galaxy surveys is described and applied to the Canada-France-Hawaii Telescope (CFHT) Lensing Survey (CFHTLenS). CFHTLenS comprises 154 sq deg of multicolour…

Number counts of galaxy clusters across redshift are a powerful cosmological probe, if a precise and accurate reconstruction of the underlying mass distribution is performed -- a challenge called mass calibration. With the advent of wide…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-17 S. Grandis , V. Ghirardini , S. Bocquet , C. Garrel , J. J. Mohr , A. Liu , M. Kluge , L. Kimmig , T. H. Reiprich , A. Alarcon , A. Amon , E. Artis , Y. E. Bahar , F. Balzer , K. Bechtol , M. R. Becker , G. Bernstein , E. Bulbul , A. Campos , A. Carnero Rosell , M. Carrasco Kind , R. Cawthon , C. Chang , R. Chen , I. Chiu , A. Choi , N. Clerc , J. Comparat , J. Cordero , C. Davis , J. Derose , H. T. Diehl , S. Dodelson , C. Doux , A. Drlica-Wagner , K. Eckert , J. Elvin-Poole , S. Everett , A. Ferte , M. Gatt , G. Giannini , P. Giles , D. Gruen , R. A. Gruendl , I. Harrison , W. G. Hartley , K. Herner , E. M. Huf , F. Kleinebreil , N. Kuropatkin , P. F. Leget , N. Maccrann , J. Mccullough , A. Merloni , J. Myles , K. Nandra , A. Navarro-Alsina , N. Okabe , F. Pacaud , S. Pandey , J. Prat , P. Predehl , M. Ramos , M. Raveri , R. P. Rollins , A. Roodman , A. J. Ross , E. S. Rykoff , C. Sanchez , J. Sanders , T. Schrabback , L. F. Secco , R. Seppi , I. Sevilla-Noarbe , E. Sheldon , T. Shin , M. Troxel , I. Tutusaus , T. N. Varga , H. Wu , B. Yanny , B. Yin , X. Zhang , Y. Zhang , O. Alves , S. Bhargava , D. Brooks , D. L. Burke , J. Carretero , M. Costanzi , L. N. da Costa , M. E. S. Pereira , J. De Vicente , S. Desai , P. Doel , I. Ferrero , B. Flaugher , D. Friedel , J. Frieman , J. García-Bellido , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. J. James , N. Jeffrey , O. Lahav , S. Lee , J. L. Marshall , F. Menanteau , R. L. C. Ogando , A. Pieres , A. A. Plazas Malagón , A. K. Romer , E. Sanchez , M. Schubnell , M. Smith , E. Suchyta , M. E. C. Swanson , G. Tarle , N. Weaverdyck , J. Weller

We observed with the camera FORS1 on the VLT (UT1, ANTU) 50 randomly selected fields and analyzed the cosmic shear inside circular apertures with diameter ranging from 0.5 to 5.0 arc-minutes. The images were obtained in optimal conditions…

Astrophysics · Physics 2009-10-31 R. Maoli , L. Van Waerbeke , Y. Mellier , P. Schneider , B. Jain , F. Bernardeau , T. Erben , B. Fort

In this work, we present a study of the void lensing signal or the excess surface mass density (ESMD) around cosmic voids. First, we propose a new void-finder algorithm that is designed to capture the ESMD around voids. We compare our…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-27 Renan Boschetti , Pauline Vielzeuf , Marie-Claude Cousinou , Stephanie Escoffier , Eric Jullo

AIMS: We present a weak lensing search of galaxy clusters in the 4 deg2 of the CFHT Legacy Survey Deep. This work aims at building a mass-selected sample of clusters. METHODS: We use the deep i' band images to perform weak lensing mass…

Astrophysics · Physics 2009-11-11 Raphael Gavazzi , Genevieve Soucail

We present a cosmic shear analysis with an improved redshift calibration for the fourth data release of the Kilo-Degree Survey (KiDS-1000) using self-organising maps (SOMs). Compared to the previous analysis of the KiDS-1000 data, we expand…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-31 J. L. van den Busch , A. H. Wright , H. Hildebrandt , M. Bilicki , M. Asgari , S. Joudaki , C. Blake , C. Heymans , A. Kannawadi , H. Y. Shan , T. Tröster

We measure the weak lensing shear around galaxy troughs, i.e. the radial alignment of background galaxies relative to underdensities in projections of the foreground galaxy field over a wide range of redshift in Science Verification data…

Weak lensing is an important technique to determine the masses of galaxy groups. However, the distortion imprint on the shape of the background galaxies is affected by all the mass content along the line-of-sight. Using COSMOS shear mock…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 P. F. Spinelli , S. Seitz , M. Lerchster , F. Brimioulle , A. Finoguenov

We present and characterize the catalog of galaxy shape measurements that will be used for cosmological weak lensing measurements in the Wide layer of the first year of the Hyper Suprime-Cam (HSC) survey. The catalog covers an area of 136.9…