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The Dark Energy Survey (DES) will use a new imaging camera on the Blanco 4-m telescope at CTIO to image 5000 square degrees of sky in the South Galactic Cap in four optical bands, and to carry out repeat imaging over a smaller area to…

The Southern Photometric Local Universe Survey (S-PLUS) is a project to map $\sim9300$ sq deg of the sky using twelve bands (seven narrow and five broadbands). Observations are performed with the T80-South telescope, a robotic telescope…

Astrophysics of Galaxies · Physics 2024-07-31 Fabio R. Herpich , Felipe Almeida-Fernandes , Gustavo B. Oliveira Schwarz , Erik V. R. Lima , Lilianne Nakazono , Javier Alonso-García , Marcos A. Fonseca-Faria , Marilia J. Sartori , Guilherme F. Bolutavicius , Gabriel Fabiano de Souza , Eduardo A. Hartmann , Liana Li , Luna Espinosa , Antonio Kanaan , William Schoenell , Ariel Werle , Eduardo Machado-Pereira , Luis A. Gutiérrez-Soto , Thaís Santos-Silva , Analia V. Smith Castelli , Eduardo A. D. Lacerda , Cassio L. Barbosa , Hélio D. Perottoni , Carlos E. Ferreira Lopes , Raquel Ruiz Valença , Pierre Augusto Re Martho , Clecio R. Bom , Charles J. Bonatto , Maiara S. Carvalho , Vitor Cernic , Roberto Cid Fernandes , Paula Coelho , Ariana Cortesi , Barbara Cubillos Palma , Lia Doubrawa , Vincenzo Sivero Ferreira Alberice , Fredi Quispe Huaynasi , Gabriel Jacob Perin , Marcelo Jaque Arancibia , Angela Krabbe , Ciria Lima-Dias , Luis Lomelí-Núñez , Raimundo Lopes de Oliveira , Amanda R. Lopes , André Luiz Figueiredo , Elismar Lösch , Felipe Navarete , Julia Mello de Oliveira , Roderik Overzier , Vinicius M. Placco , Fernando V. Roig , Mariana Rubet , André Santos , Victor Hugo Sasse , Julia Thaina-Batista , Sergio Torres-Flores , Timothy C. Beers , Alvaro Alvarez-Candal , Stavros Akras , Swayamtrupta Panda , Guilherme Limberg , José Luis Nilo Castellón , Eduardo Telles , Paulo Afranio Lopes , Gissel Dayana Pardo Montaguth , Leandro Beraldo e Silva , Pedro K. Humire , Marcelo Borges Fernandes , Vinícius Cordeiro , Tiago Ribeiro , Claudia Mendes de Oliveira

We present a catalog of 1.4 million photometrically-selected quasar candidates in the southern hemisphere over the $\sim 5000\,{\rm deg^2}$ Dark Energy Survey (DES) wide survey area. We combine optical photometry from the DES second data…

Astrophysics of Galaxies · Physics 2022-12-28 Qian Yang , Yue Shen

The Dark Energy Camera is a new imager with a 2.2-degree diameter field of view mounted at the prime focus of the Victor M. Blanco 4-meter telescope on Cerro Tololo near La Serena, Chile. The camera was designed and constructed by the Dark…

Instrumentation and Methods for Astrophysics · Physics 2015-10-28 B. Flaugher , H. T. Diehl , K. Honscheid , T. M. C. Abbott , O. Alvarez , R. Angstadt , J. T. Annis , M. Antonik , O. Ballester , L. Beaufore , G. M. Bernstein , R. A. Bernstein , B. Bigelow , M. Bonati , D. Boprie , D. Brooks , E. J. Buckley-Geer , J. Campa , L. Cardiel-Sas , F. J. Castander , J. Castilla , H. Cease , J. M. Cela-Ruiz , S. Chappa , E. Chi , C. Cooper , L. N. da Costa , E. Dede , G. Derylo , D. L. DePoy , J. de Vicente , P. Doel , A. Drlica-Wagner , J. Eiting , A. E. Elliott , J. Emes , J. Estrada , A. Fausti Neto , D. A. Finley , R. Flores , J. Frieman , D. Gerdes , M. D. Gladders , B. Gregory , G. R. Gutierrez , J. Hao , S. E. Holland , S. Holm , D. Huffman , C. Jackson , D. J. James , M. Jonas , A. Karcher , I. Karliner , S. Kent , R. Kessler , M. Kozlovsky , R. G. Kron , D. Kubik , K. Kuehn , S. Kuhlmann , K. Kuk , O. Lahav , A. Lathrop , J. Lee , M. E. Levi , P. Lewis , T. S. Li , I. Mandrichenko , J. L. Marshall , G. Martinez , K. W. Merritt , R. Miquel , F. Munoz , E. H. Neilsen , R. C. Nichol , B. Nord , R. Ogando , J. Olsen , N. Palio , K. Patton , J. Peoples , A. A. Plazas , J. Rauch , K. Reil , J. -P. Rheault , N. A. Roe , H. Rogers , A. Roodman , E. Sanchez , V. Scarpine , R. H. Schindler , R. Schmidt , R. Schmitt , M. Schubnell , K. Schultz , P. Schurter , L. Scott , S. Serrano , T. M. Shaw , R. C. Smith , M. Soares-Santos , A. Stefanik , W. Stuermer , E. Suchyta , A. Sypniewski , G. Tarle , J. Thaler , R. Tighe , C. Tran , D. Tucker , A. R. Walker , G. Wang , M. Watson , C. Weaverdyck , W. Wester , R. Woods , B. Yanny

The Dark Energy Survey (DES) is a five-year optical imaging campaign with the goal of understanding the origin of cosmic acceleration. DES performs a 5000 square degree survey of the southern sky in five optical bands (g,r,i,z,Y) to a depth…

The Dark Energy Spectroscopic Instrument (DESI) completed its five-month Survey Validation in May 2021. Spectra of stellar and extragalactic targets from Survey Validation constitute the first major data sample from the DESI survey. This…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-18 DESI Collaboration , A. G. Adame , J. Aguilar , S. Ahlen , S. Alam , G. Aldering , D. M. Alexander , R. Alfarsy , C. Allende Prieto , M. Alvarez , O. Alves , A. Anand , F. Andrade-Oliveira , E. Armengaud , J. Asorey , S. Avila , A. Aviles , S. Bailey , A. Balaguera-Antolínez , O. Ballester , C. Baltay , A. Bault , J. Bautista , J. Behera , S. F. Beltran , S. BenZvi , L. Beraldo e Silva , J. R. Bermejo-Climent , A. Berti , R. Besuner , F. Beutler , D. Bianchi , C. Blake , R. Blum , A. S. Bolton , S. Brieden , A. Brodzeller , D. Brooks , Z. Brown , E. Buckley-Geer , E. Burtin , L. Cabayol-Garcia , Z. Cai , R. Canning , L. Cardiel-Sas , A. Carnero Rosell , F. J. Castander , J. L. Cervantes-Cota , S. Chabanier , E. Chaussidon , J. Chaves-Montero , S. Chen , X. Chen , C. Chuang , T. Claybaugh , S. Cole , A. P. Cooper , A. Cuceu , T. M. Davis , K. Dawson , R. de Belsunce , R. de la Cruz , A. de la Macorra , J. Della Costa , A. de Mattia , R. Demina , U. Demirbozan , J. DeRose , A. Dey , B. Dey , G. Dhungana , J. Ding , Z. Ding , P. Doel , R. Doshi , K. Douglass , A. Edge , S. Eftekharzadeh , D. J. Eisenstein , A. Elliott , S. Escoffier , P. Fagrelius , X. Fan , K. Fanning , V. A. Fawcett , S. Ferraro , J. Ereza , B. Flaugher , A. Font-Ribera , D. Forero-Sánchez , J. E. Forero-Romero , C. S. Frenk , B. T. Gänsicke , L. Á. García , J. García-Bellido , C. Garcia-Quintero , L. H. Garrison , H. Gil-Marín , J. Golden-Marx , S. Gontcho A Gontcho , A. X. Gonzalez-Morales , V. Gonzalez-Perez , C. Gordon , O. Graur , D. Green , D. Gruen , J. Guy , B. Hadzhiyska , C. Hahn , J. J. Han , M. M. S Hanif , H. K. Herrera-Alcantar , K. Honscheid , J. Hou , C. Howlett , D. Huterer , V. Iršič , M. Ishak , A. Jacques , A. Jana , L. Jiang , J. Jimenez , Y. P. Jing , S. Joudaki , E. Jullo , S. Juneau , N. Kizhuprakkat , N. G. Karaçaylı , T. Karim , R. Kehoe , S. Kent , A. Khederlarian , S. Kim , D. Kirkby , T. Kisner , F. Kitaura , J. Kneib , S. E. Koposov , A. Kovács , A. Kremin , A. Krolewski , B. L'Huillier , O. Lahav , A. Lambert , C. Lamman , T. -W. Lan , M. Landriau , D. Lang , J. U. Lange , J. Lasker , A. Leauthaud , L. Le Guillou , M. E. Levi , T. S. Li , E. Linder , A. Lyons , C. Magneville , M. Manera , C. J. Manser , D. Margala , P. Martini , P. McDonald , G. E. Medina , L. Medina-Varela , A. Meisner , J. Mena-Fernández , J. Meneses-Rizo , M. Mezcua , R. Miquel , P. Montero-Camacho , J. Moon , S. Moore , J. Moustakas , E. Mueller , J. Mundet , A. Muñoz-Gutiérrez , A. D. Myers , S. Nadathur , L. Napolitano , R. Neveux , J. A. Newman , J. Nie , R. Nikutta , G. Niz , P. Norberg , H. E. Noriega , E. Paillas , N. Palanque-Delabrouille , A. Palmese , P. Zhiwei , D. Parkinson , S. Penmetsa , W. J. Percival , A. Pérez-Fernández , I. Pérez-Ràfols , M. Pieri , C. Poppett , A. Porredon , S. Pothier , F. Prada , R. Pucha , A. Raichoor , C. Ramírez-Pérez , S. Ramirez-Solano , M. Rashkovetskyi , C. Ravoux , A. Rocher , C. Rockosi , A. J. Ross , G. Rossi , R. Ruggeri , V. Ruhlmann-Kleider , C. G. Sabiu , K. Said , A. Saintonge , L. Samushia , E. Sanchez , C. Saulder , E. Schaan , E. F. Schlafly , D. Schlegel , D. Scholte , M. Schubnell , H. Seo , A. Shafieloo , R. Sharples , W. Sheu , J. Silber , F. Sinigaglia , M. Siudek , Z. Slepian , A. Smith , M. T. Soumagnac , D. Sprayberry , L. Stephey , J. Suárez-Pérez , Z. Sun , T. Tan , G. Tarlé , R. Tojeiro , L. A. Ureña-López , R. Vaisakh , D. Valcin , F. Valdes , M. Valluri , M. Vargas-Magaña , A. Variu , L. Verde , M. Walther , B. Wang , M. S. Wang , B. A. Weaver , N. Weaverdyck , R. H. Wechsler , M. White , Y. Xie , J. Yang , C. Yèche , J. Yu , S. Yuan , H. Zhang , Z. Zhang , C. Zhao , Z. Zheng , R. Zhou , Z. Zhou , H. Zou , S. Zou , Y. Zu

We have used the Dark Energy Camera (DECam) on the CTIO Blanco 4-m telescope to perform a new emission-line survey of the Large Magellanic Cloud (LMC) using narrow-band H-alpha and [SII] filters in addition to a continuum band for use in…

The Dark Energy Camera (DECam) is a wide-field instrument mounted on the 4m V. Blanco Telescope (CTIO). Its impressive technical characteristics makes it one of the most suitable ground-based telescope for the production of accurate stellar…

Solar and Stellar Astrophysics · Physics 2025-06-06 A. Franco , A. A. Nucita , F. De Paolis , F. Strafella

We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability, for sources brighter than magnitude 21. In addition epoch astrometry…

This paper presents the second data release (DR2) of the Beijing-Arizona Sky Survey (BASS). BASS is an imaging survey of about 5400 deg$^2$ in $g$ and $r$ bands using the 2.3 m Bok telescope. DR2 includes the observations as of July 2017…

The Dark Energy Survey (DES) is a next generation optical survey aimed at measuring the expansion history of the universe using four probes: weak gravitational lensing, galaxy cluster counts, baryon acoustic oscillations, and Type Ia…

The Large Synoptic Survey Telescope (LSST), the next-generation optical imaging survey sited at Cerro Pachon in Chile, will provide an unprecedented database of astronomical measurements. The LSST design, with an 8.4m (6.7m effective)…

Instrumentation and Methods for Astrophysics · Physics 2017-06-14 Željko Ivezić , Andrew J. Connolly , Mario Jurić

We use 26 million galaxies from the Dark Energy Survey (DES) Year 1 shape catalogs over 1321 deg$^2$ of the sky to produce the most significant measurement of cosmic shear in a galaxy survey to date. We constrain cosmological parameters in…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-12 M. A. Troxel , N. MacCrann , J. Zuntz , T. F. Eifler , E. Krause , S. Dodelson , D. Gruen , J. Blazek , O. Friedrich , S. Samuroff , J. Prat , L. F. Secco , C. Davis , A. Ferté , J. DeRose , A. Alarcon , A. Amara , E. Baxter , M. R. Becker , G. M. Bernstein , S. L. Bridle , R. Cawthon , C. Chang , A. Choi , J. De Vicente , A. Drlica-Wagner , J. Elvin-Poole , J. Frieman , M. Gatti , W. G. Hartley , K. Honscheid , B. Hoyle , E. M. Huff , D. Huterer , B. Jain , M. Jarvis , T. Kacprzak , D. Kirk , N. Kokron , C. Krawiec , O. Lahav , A. R. Liddle , J. Peacock , M. M. Rau , A. Refregier , R. P. Rollins , E. Rozo , E. S. Rykoff , C. Sánchez , I. Sevilla-Noarbe , E. Sheldon , A. Stebbins , T. N. Varga , P. Vielzeuf , M. Wang , R. H. Wechsler , B. Yanny , T. M. C. Abbott , F. B. Abdalla , S. Allam , J. Annis , K. Bechtol , A. Benoit-Lévy , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , M. Crocce , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , D. L. DePoy , S. Desai , H. T. Diehl , J. P. Dietrich , P. Doel , E. Fernandez , B. Flaugher , P. Fosalba , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , D. A. Goldstein , R. A. Gruendl , J. Gschwend , G. Gutierrez , D. J. James , T. Jeltema , M. W. G. Johnson , M. D. Johnson , S. Kent , K. Kuehn , S. Kuhlmann , N. Kuropatkin , T. S. Li , M. Lima , H. Lin , M. A. G. Maia , M. March , J. L. Marshall , P. Martini , P. Melchior , F. Menanteau , R. Miquel , J. J. Mohr , E. Neilsen , R. C. Nichol , B. Nord , D. Petravick , A. A. Plazas , A. K. Romer , A. Roodman , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , M. Smith , R. C. Smith , M. Soares-Santos , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , D. L. Tucker , V. Vikram , A. R. Walker , J. Weller , Y. Zhang

We present Rubin Data Preview 1 DP1, the first data from the NSF DOE Vera C Rubin Observatory, comprising raw and calibrated single epoch images, coadds, difference images, detection catalogs, and ancillary data products. DP1 is based on…

Instrumentation and Methods for Astrophysics · Physics 2026-03-26 Vera C Rubin Observatory Team , Tatiana Acero Cuellar , Emily Acosta , Christina L Adair , Prakruth Adari , Jennifer K Adelman McCarthy , Anastasia Alexov , Russ Allbery , Robyn Allsman , Yusra AlSayyad , Jhonatan Amado , Nathan Amouroux , Pierre Antilogus , Alexis Aracena Alcayaga , Gonzalo Aravena Rojas , Claudio H Araya Cortes , Eric Aubourg , Tim S Axelrod , John Banovetz , Carlos Barria , Amanda E Bauer , Brian J Bauman , Ellen Bechtol , Keith Bechtol , Andrew C Becker , Valerie R Becker , Mark G Beckett , Eric C Bellm , Pedro H Bernardinelli , Federica Bettina Bianco , Robert D Blum , Joanne Bogart , Adam Bolton , Michael T Booth , James F Bosch , Alexandre Boucaud , Dominique Boutigny , Robert A Bovill , Andrew Bradshaw , Johan Bregeon , Massimo Brescia , Brian J Brondel , Alexander Broughton , Audrey Budlong , Dimitri Buffat , Rodolfo Canestrari , Neven Caplar , Jeffrey L Carlin , Ross Ceballo , Colin Orion Chandler , Chihway Chang , Glenaver Charles Emerson , Hsin Fang Chiang , James Chiang , Yumi Choi , Eric J Christensen , Charles F Claver , Andy W Clements , Joseph J Cockrum , Johann Cohen Tanugi , Franco Colleoni , Celine Combet , Andrew J Connolly , Julio Eduardo Constanzo Cordova , Hans E Contreras , John Franklin Crenshaw , Sylvie Dagoret Campagne , Scott F Daniel , Felipe Daruich , Guillaume Daubard , Greg Daues , Erik Dennihy , Stephanie J H Deppe , Seth W Digel , Peter E Doherty , Cyrille Doux , Alex Drlica Wagner , Gregory P Dubois Felsmann , Frossie Economou , Orion Eiger , Lukas Eisert , Alan M Eisner , Anthony Englert , Baden Erb , Juan A Fabrega , Parker Fagrelius , Kevin Fanning , Angelo Fausti Neto , Peter S Ferguson , Agnes Ferte , Krzysztof Findeisen , Merlin Fisher Levine , Gloria Fonseca Alvarez , Michael D Foss , Dominique Fouchez , Dan C Fuchs , Shenming Fu , Emmanuel Gangler , Igor Gaponenko , Julen Garcia , John H Gates , Ranpal K Gill , Enrico Giro , Thomas Glanzman , Robinson Godoy , Iain Goodenow , Miranda R Gorsuch , Michelle Gower , Melissa L Graham , Mikael Granvik , Sarah Greenstreet , Wen Guan , Thibault Guillemin , Leanne P Guy , Diane Hascall , Patrick A Hascall , Aren Nathaniel Heinze , Fabio Hernandez , Kenneth Herner , Ardis Herrold , Clare R Higgs , Joshua Hoblitt , Erin Leigh Howard , Minhee Hyun , Amanda Ibsen , Patrick Ingraham , David H Irving , Zeljko Ivezic , Suzanne H Jacoby , Buell T Jannuzi , Sreevani Jarugula , M James Jee , Tim Jenness , Toby C Jennings , Andrea Jeremie , Garrett Jernigan , David Jimenez Mejias , Anthony S Johnson , R Lynne Jones , Roger William Lewis Jones , Claire Juramy Gilles , Mario Juric , Steven M Kahn , J Bryce Kalmbach , Yijung Kang , Arun Kannawadi , Jeffrey P Kantor , Edward Karavakis , Kshitija Kelkar , Lee S Kelvin , Scot J Kleinman , Ivan V Kotov , Gabor Kovacs , Mikolaj Kowalik , Victor L Krabbendam , K Simon Krughoff , Petr Kubanek , Jacob A Kurlander , Mile Kusulja , Craig S Lage , Paulo J A Lago , Katherine Laliotis , Travis Lange , Didier Laporte , Ryan M Lau , Juan Carlos Lazarte , Quentin Le Boulch , Pierre Francois Leget , Laurent Le Guillou , Benjamin Levine , Ming Liang , Shuang Liang , Kian Tat Lim , Anja von der Linden , Huan Lin , Margaux Lopez , Juan J Lopez Toro , Peter Love , Robert H Lupton , Nate B Lust , Lauren A MacArthur , Sean Patrick MacBride , Greg M Madejski , Gabriele Mainetti , Steven J Margheim , Thomas W Markiewicz , Phil Marshall , Stuart Marshall , Guido Maulen , Sidney Mau , Morgan May , Jeremy McCormick , David McKay , Robert McKercher , Guillem Megias Homar , Aaron M Meisner , Felipe Menanteau , Heather R Mentzer , Kristen Metzger , Joshua E Meyers , Michelle Miller , David J Mills , Joachim Moeyens , Marc Moniez , Fred E Moolekamp , C A L Morales Marin , Fritz Mueller , James R Mullaney , Freddy Munoz Arancibia , Kate Napier , Homer Neal , Eric H Neilsen , Jeremy Neveu , Timothy Noble , Erfan Nourbakhsh , Knut Olsen , William OMullane , Dmitry Onoprienko , Marco Oriunno , Shawn Osier , Russell E Owen , Aashay Pai , John K Parejko , Hye Yun Park , James B Parsons , Maria T Patterson , Marina S Pavlovic , Karla Pena Ramirez , John R Peterson , Stephen R Pietrowicz , Andres A Plazas Malagon , Rebekah Polen , Hannah Mary Margaret Pollek , Paul A Price , Bruno C Quint , Jose Miguel Quintero Marin , Markus Rabus , Benjamin Racine , Veljko Radeka , Manon Ramel , Arianna Ranabhat , Andrew P Rasmussen , David A Rathfelder , Meredith L Rawls , Sophie L Reed , Kevin A Reil , David J Reiss , Michael A Reuter , Tiago Ribeiro , Mickael Rigault , Vincent J Riot , Steven M Ritz , Mario F Rivera Rivera , Brant E Robertson , William Roby , Gabriele Rodeghiero , Aaron Roodman , Luca Rosignoli , Cecile Roucelle , Matthew R Rumore , Stefano Russo , Eli S Rykoff , Andrei Salnikov , Bruno O Sanchez , David Sanmartim , Clare Saunders , Rafe H Schindler , Samuel J Schmidt , Jacques Sebag , Nima Sedaghat , Brian Selvy , Edgard Esteban Sepulveda Valenzuela , Gonzalo Seriche , Jacqueline C Seron Navarrete , Ignacio Sevilla Noarbe , Alysha B Shugart , Jonathan Sick , Cristian Silva , Mathew C Sims , Jaladh Singhal , Kevin Benjamin Siruno , Colin T Slater , Brianna M Smart , Adam Snyder , Christine Soldahl , Ioana Sotuela Elorriaga , Brian Stalder , Hernan Stockebrand , Alan L Strauss , Michael A Strauss , Krzysztof Suberlak , Ian S Sullivan , John D Swinbank , Diego Tapia , Alessio Taranto , Dan S Taranu , John Gregg Thayer , Sandrine Thomas , Adam J Thornton , Roberto Tighe , Laura Toribio San Cipriano , Te Wei Tsai , Douglas L Tucker , Max Turri , J Anthony Tyson , Elana K Urbach , Yousuke Utsumi , Brian Van Klaveren , Wouter van Reeven , Peter Anthony Vaucher , Paulina Venegas , Aprajita Verma , Antonia Sierra Villarreal , Stelios Voutsinas , Christopher W Walter , Yuankun David Wang , Christopher Z Waters , Christina C Williams , Beth Willman , Matthias Wittgen , W M Wood Vasey , Wei Yang , Zhaoyu Yang , Brian P Yanny , Peter Yoachim , Tianqing Zhang , Conghao Zhou , Danica Zilkova

The Sloan Digital Sky Survey has validated and made publicly available its Second Data Release. This data release consists of 3324 square degrees of five-band (u g r i z) imaging data with photometry for over 88 million unique objects,…

Astrophysics · Physics 2008-11-26 K. Abazajian et al.

We present constraints on models of cosmology and astrophysics using cosmic shear data vectors from three datasets: the northern and southern Galactic cap of the Dark Energy Camera All Data Everywhere (DECADE) project, and the Dark Energy…