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We present cosmological constraints from the Dark Energy Survey (DES) using a combined analysis of angular clustering of red galaxies and their cross-correlation with weak gravitational lensing of background galaxies. We use a 139 square…

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…

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

We review the measurements of dark energy enabled by observations of the Deep Drilling Fields and the optimization of survey design for cosmological measurements. This white paper is the result of efforts by the LSST DESC Observing Strategy…

The Dark Energy Spectroscopic Instrument (DESI) is carrying out a 5-year survey that aims to measure the redshifts of tens of millions of galaxies and quasars, including 8 million luminous red galaxies (LRGs) in the redshift range of…

We use two independent methods to forecast the dark energy measurements achievable by combining future galaxy redshift surveys based on the radio HI emission line with Cosmic Microwave Background (CMB) data from the {\sl Planck} satellite.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Filipe B. Abdalla , Chris Blake , Steve Rawlings

Euclid will observe 15 000 deg$^2$ of the darkest sky, in regions free of contamination by light from our Galaxy and our Solar System. Three "Euclid Deep Fields" surveys covering around 40 deg$^2$ in total will extend the scientific scope…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-17 Isaac Tutusaus , Jenny G. Sorce , Antonino Troja

We measure the weak-lensing masses and galaxy distributions of four massive galaxy clusters observed during the Science Verification phase of the Dark Energy Survey. This pathfinder study is meant to 1) validate the DECam imager for the…

We present the methodology for and detail the implementation of the Dark Energy Survey (DES) 3x2pt DES Year 1 (Y1) analysis, which combines configuration-space two-point statistics from three different cosmological probes: cosmic shear,…

Galaxy redshift surveys are one of the pillars of the current standard cosmological model and remain a key tool in the experimental effort to understand the origin of cosmic acceleration. To this end, the next generation of surveys aim at…

Cosmology and Nongalactic Astrophysics · Physics 2018-03-30 L. Guzzo , J. Bel , D. Bianchi , C. Carbone , B. R. Granett , A. J. Hawken , F. G. Mohammad , A. Pezzotta , S. Rota , M. Zennaro

The ability to test the nature of dark mass-energy components in the universe through large-scale structure studies hinges on accurate predictions of sky survey expectations within a given world model. Numerical simulations predict key…

Several nearby ultra-faint satellites of the Milky Way discovered by the Dark Energy Survey (DES) during the last few years are promising targets for indirect dark matter (DM) searches with very-high-energy (VHE, E$\gtrsim$100 GeV) gamma…

High Energy Astrophysical Phenomena · Physics 2019-09-05 Lucia Rinchiuso , Emmanuel Moulin , Céline Armand , Vincent Poireau , H. E. S. S. Collaboration

Building on the legacy of the Sloan Digital Sky Survey (SDSS-I and II), SDSS-III is a program of four spectroscopic surveys on three scientific themes: dark energy and cosmological parameters, the history and structure of the Milky Way, and…

Instrumentation and Methods for Astrophysics · Physics 2015-03-17 Daniel J. Eisenstein , David H. Weinberg , Eric Agol , Hiroaki Aihara , Carlos Allende Prieto , Scott F. Anderson , James A. Arns , Eric Aubourg , Stephen Bailey , Eduardo Balbinot , Robert Barkhouser , Timothy C. Beers , Andreas A. Berlind , Steven J. Bickerton , Dmitry Bizyaev , Michael R. Blanton , John J. Bochanski , Adam S. Bolton , Casey T. Bosman , Jo Bovy , Howard J. Brewington , W. N. Brandt , Ben Breslauer , J. Brinkmann , Peter J. Brown , Joel R. Brownstein , Dan Burger , Nicolas G. Busca , Heather Campbell , Phillip A. Cargile , William C. Carithers , Joleen K. Carlberg , Michael A. Carr , Yanmei Chen , Cristina Chiappini , Johan Comparat , Natalia Connolly , Marina Cortes , Rupert A. C. Croft , Luiz N. da Costa , Katia Cunha , James R. A. Davenport , Kyle Dawson , Nathan De Lee , Gustavo F. Porto de Mello , Fernando de Simoni , Janice Dean , Saurav Dhital , Anne Ealet , Garrett L. Ebelke , Edward M. Edmondson , Jacob M. Eiting , Stephanie Escoffier , Massimiliano Esposito , Michael L. Evans , Xiaohui Fan , Bruno Femenia Castella , Leticia Dutra Ferreira , Greg Fitzgerald , Scott W. Fleming , Andreu Font-Ribera , Eric B. Ford , Peter M. Frinchaboy , Ana Elia Garcia Perez , B. Scott Gaudi , Jian Ge , Luan Ghezzi , Bruce A. Gillespie , G. Gilmore , Leo Girardi , J. Richard Gott , Andrew Gould , Eva K. Grebel , James E. Gunn , Jean-Christophe Hamilton , Paul Harding , David W. Harris , Suzanne L. Hawley , Frederick R. Hearty , Jonay I. Gonzalez Hernandez , Shirley Ho , David W. Hogg , Jon A. Holtzman , Klaus Honscheid , Naohisa Inada , Inese I. Ivans , Linhua Jiang , Peng Jiang , Jennifer A. Johnson , Cathy Jordan , Wendell P. Jordan , Guinevere Kauffmann , Eyal Kazin , David Kirkby , Mark A. Klaene , Jean-Paul Kneib , G. R. Knapp , C. S. Kochanek , Lars Koesterke , Juna A. Kollmeier , Richard G. Kron , Dustin Lang , James E. Lawler , Jean-Marc Le Goff , Brian L. Lee , Young Sun Lee , Jarron M. Leisenring , Yen-Ting Lin , Jian Liu , Daniel C. Long , Craig P. Loomis , Sara Lucatello , Britt Lundgren , Robert H. Lupton , Bo Ma , Zhibo Ma , Nicholas MacDonald , Claude Mack , Suvrath Mahadevan , Marcio A. G. Maia , Elena Malanushenko , Viktor Malanushenko , Steven R. Majewski , Martin Makler , Rachel Mandelbaum , Claudia Maraston , Daniel Margala , Paul Maseman , Karen L. Masters , Cameron K. McBride , Patrick McDonald , Ian D. McGreer , Richard G. McMahon , Olga Mena Requejo , Brice Menard , Jordi Miralda-Escude , Heather L. Morrison , Fergal Mullally , Demitri Muna , Hitoshi Murayama , Adam D. Myers , Tracy Naugle , Angelo Fausti Neto , Duy Cuong Nguyen , Robert C. Nichol , David L. Nidever , Robert W. O'Connell , Ricardo L. C. Ogando , Matthew D. Olmstead , Daniel J. Oravetz , Nikhil Padmanabhan , Martin Paegert , Nathalie Palanque-Delabrouille , Kaike Pan , Parul Pandey , John K. Parejko , Isabelle Paris , Paulo Pellegrini , Joshua Pepper , Will J. Percival , Patrick Petitjean , Robert Pfaffenberger , Janine Pforr , Stefanie Phleps , Christophe Pichon , Matthew M. Pieri , Francisco Prada , Adrian M. Price-Whelan , M. Jordan Raddick , Beatriz H. F. Ramos , Celine Ryle , I. Neill Reid , James Rich , Gordon T. Richards , George H. Rieke , Marcia J. Rieke , Hans-Walter Rix , Annie C. Robin , Helio J. Rocha-Pinto , Constance M. Rockosi , Natalie A. Roe , Emmanuel Rollinde , Ashley J. Ross , Nicholas P. Ross , Bruno Rossetto , Ariel G. Sanchez , Basilio Santiago , Conor Sayres , Ricardo Schiavon , David J. Schlegel , Katharine J. Schlesinger , Sarah J. Schmidt , Donald P. Schneider , Kris Sellgren , Alaina Shelden , Erin Sheldon , Matthew Shetrone , Yiping Shu , John D. Silverman , Jennifer Simmerer , Audrey E. Simmons , Thirupathi Sivarani , M. F. Skrutskie , Anze Slosar , Stephen Smee , Verne V. Smith , Stephanie A. Snedden , Keivan G. Stassun , Oliver Steele , Matthias Steinmetz , Mark H. Stockett , Todd Stollberg , Michael A. Strauss , Masayuki Tanaka , Aniruddha R. Thakar , Daniel Thomas , Jeremy L. Tinker , Benjamin M. Tofflemire , Rita Tojeiro , Christy A. Tremonti , Mariana Vargas Magana , Licia Verde , Nicole P. Vogt , David A. Wake , Xiaoke Wan , Ji Wang , Benjamin A. Weaver , Martin White , Simon D. M. White , John C. Wilson , John P. Wisniewski , W. Michael Wood-Vasey , Brian Yanny , Naoki Yasuda , Christophe Yeche , Donald G. York , Erick Young , Gail Zasowski , Idit Zehavi , Bo Zhao

The Dark Energy Spectroscopic Instrument (DESI) Survey has obtained a set of spectroscopic measurements of galaxies to validate the final survey design and target selections. To assist in these tasks, we visually inspect (VI) DESI spectra…

We performed a search for strong lens galaxy-scale systems in the first data release of the Dark Energy Survey (DES), from a color-selected parent sample of 18~745~029 Luminous Red Galaxies (LRGs). Our search was based on a Convolutional…

Astrophysics of Galaxies · Physics 2022-12-14 K. Rojas , E. Savary , B. Clément , M. Maus , F. Courbin , C. Lemon , J. H. H. Chan , G. Vernardos , R. Joseph , R. Cañameras , A. Galan

Determining the distribution of redshifts of galaxies observed by wide-field photometric experiments like the Dark Energy Survey is an essential component to mapping the matter density field with gravitational lensing. In this work we…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-30 J. Myles , A. Alarcon , A. Amon , C. Sánchez , S. Everett , J. DeRose , J. McCullough , D. Gruen , G. M. Bernstein , M. A. Troxel , S. Dodelson , A. Campos , N. MacCrann , B. Yin , M. Raveri , A. Amara , M. R. Becker , A. Choi , J. Cordero , K. Eckert , M. Gatti , G. Giannini , J. Gschwend , R. A. Gruendl , I. Harrison , W. G. Hartley , E. M. Huff , N. Kuropatkin , H. Lin , D. Masters , R. Miquel , J. Prat , A. Roodman , E. S. Rykoff , I. Sevilla-Noarbe , E. Sheldon , R. H. Wechsler , B. Yanny , T. M. C. Abbott , M. Aguena , S. Allam , J. Annis , D. Bacon , E. Bertin , S. Bhargava , S. L. Bridle , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , C. Conselice , M. Costanzi , M. Crocce , L. N. da Costa , M. E. S. Pereira , S. Desai , H. T. Diehl , T. F. Eifler , J. Elvin-Poole , A. E. Evrard , I. Ferrero , A. Ferté , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , T. Giannantonio , S. R. Hinton , D. L. Hollowood , K. Honscheid , B. Hoyle , D. Huterer , D. J. James , E. Krause , K. Kuehn , O. Lahav , M. Lima , M. A. G. Maia , J. L. Marshall , P. Martini , P. Melchior , F. Menanteau , J. J. Mohr , R. Morgan , J. Muir , R. L. C. Ogando , A. Palmese , F. Paz-Chinchón , A. A. Plazas , M. Rodriguez-Monroy , S. Samuroff , E. Sanchez , V. Scarpine , L. F. Secco , S. Serrano , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , T. N. Varga , J. Weller , W. Wester
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