Overview of the DESI Legacy Imaging Surveys

Arjun Dey , David J. Schlegel (1) , Dustin Lang , Robert Blum , Kaylan Burleigh , Xiaohui Fan , Joseph R. Findlay , Doug Finkbeiner , David Alberto Herrera (2) , Stéphanie Juneau (3) , Martin Landriau (4) , Michael Levi , Ian Mcgreer , Aaron Meisner , Adam D. Myers , John Moustakas , Peter Nugent , Anna Patej , Edward F. Schlafly , Alistair R. Walker , Francisco Valdes , Benjamin A. Weaver , Christophe Yeche (5) , Hu Zou , Xu Zhou (6) , Behzad Abareshi , T. M. C. Abbott , Bela Abolfathi , C. Aguilera , Lori Allen , A. Alvarez , James Annis , Marie Aubert (7) , Eric F. Bell , Segev Y. Benzvi , Richard M. Bielby , Adam S. Bolton , Cesar Briceno , Elizabeth J. Buckley-Geer , Karen Butler , Annalisa Calamida , Raymond G. Carlberg , Paul Carter , Ricard Casas , Francisco J. Castander , Yumi Choi , Johan Comparat (8) , Elena Cukanovaite , Timothee Delubac (9) , Kaitlin Devries , Sharmila Dey , Govinda Dhungana , Mark Dickinson (10) , Zhejie Ding , John B. Donaldson (11) , Yutong Duan , Christopher J. Duckworth , Sarah Eftekharzadeh , Daniel J. Eisenstein , Thomas Etourneau (5) , Parker A. Fagrelius , Jay Farihi , Mike Fitzpatrick , Andreu Font-Ribera , Leah Fulmer , Boris T. Gansicke , Enrique Gaztanaga (12) , Koshy George , David W. Gerdes , Satya Gontcho A Gontcho , Gregory Green , Julien Guy (1) , Diane Harmer , M. Hernandez (13) , Klaus Honscheid , Huang Lijuan , David James , Buell T. Jannuzi (14) , Linhua Jiang , Richard Joyce , Armin Karcher , Sonia Karkar (15) , Robert Kehoe , Jean-Paul Kneib (16) , Andrea Kueter-Young , Ting-Wen Lan , Tod Lauer , Laurent Le Guillou (17, 15) , Auguste Le van Suu , Jae Hyeon Lee , Michael Lesser , Ting S. Li , Justin L. Mann , Bob Marshall , C. E. Martínez-Vázquez , Paul Martini , Hélion Du Mas Des Bourboux (5) , Sean Mcmanus , Brice Menard , Nigel Metcalfe , Andrea Muñoz-Gutiérrez , Joan Najita , Kevin Napier , Gautham Narayan , Jeffrey A. Newman (18) , Jundan Nie , Brian Nord , Dara J. Norman , Knut A. G. Olsen , Anthony Paat , Nathalie Palanque-Delabrouille (5) , Xiyan Peng , Claire L. Poppett , Megan R. Poremba , Abhishek Prakash , David Rabinowitz , Anand Raichoor (19) , Mehdi Rezaie , A. N. Robertson , Natalie A. Roe , Ashley J. Ross (20) , Nicholas P. Ross , Gregory Rudnick , Sasha Safonova , Abhijit Saha (21) , F. Javier Sánchez (22) , Heidi Schweiker , Adam Scott , Hee-Jong Seo , Huanyuan Shan (23) , David R. Silva , Christian Soto , David Sprayberry , Ryan Staten , Coley M. Stillman , Robert J. Stupak , David L. Summers , Suk Sien Tie , H. Tirado , Mariana Vargas-Magaña (24) , A. Katherina Vivas , Risa H. Wechsler , Doug Williams , Jinyi Yang , Qian Yang (25) , Tolga Yapici , Dennis Zaritsky (14) , A. Zenteno , Kai Zhang (26) , Tianmeng Zhang , Rongpu Zhou , Zhimin Zhou

1 LBNL - Lawrence Berkeley National Laboratory [Berkeley]
2 UAN - Universidad Antonio Nariño
3 DAP - Département d'Astrophysique (ex SAP)
4 LAL - Laboratoire de l'Accélérateur Linéaire
5 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
6 National University of Defense Technology [China]
7 CPPM - Centre de Physique des Particules de Marseille
8 Departamento de FisicaTeorica e IFT-UAM/CSIC
9 EPFL Laboratoire d’astrophysique
10 NOAO - National Optical Astronomy Observatory
11 Columbia University [New York]
12 ICE-CSIC - Institut de Ciencies de l'Espai [Barcelona]
13 Biologie des Interactions Neurones / Glie
14 University of Arizona
15 LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies
16 LATT - Laboratoire Astrophysique de Toulouse-Tarbes
17 SU - Sorbonne Université
18 Department of Physics and Astronomy [Pittsburgh]
19 GEPI - Galaxies, Etoiles, Physique, Instrumentation
20 Institut Lagrange de Paris
21 Chimie, Modélisation et Imagerie pour la Biologie [Orsay]
22 CVC - Computer Vision Center (Centre de visio per computador)
23 EPFL - Ecole Polytechnique Fédérale de Lausanne
24 APC - Cosmologie
25 Ministry of Education Key Laboratory of Protein Sciences
26 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes

The DESI Legacy Imaging Surveys are a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing-Arizona Sky Survey, and the Mayall z-band Legacy Survey) that will jointly image ~14,000 square degrees of the extragalactic sky visible from the northern hemisphere in three optical bands (g, r, and z) using telescopes at the Kitt Peak National Observatory and the Cerro Tololo Inter-American Observatory. The combined survey footprint is split into two contiguous areas by the Galactic plane. The optical imaging is conducted using a unique strategy of dynamic observing that results in a survey of nearly uniform depth. In addition to calibrated images, the project is delivering an inference-based catalog which includes photometry from the grz optical bands and from four mid-infrared bands (at 3.4um, 4.6um, 12um and 22um) observed by the Wide-field Infrared Survey Explorer (WISE) satellite during its full operational lifetime. The project plans two public data releases each year. All the software used to generate the catalogs is also released with the data. This paper provides an overview of the Legacy Surveys project.

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]

Arjun Dey, David J. Schlegel, Dustin Lang, Robert Blum, Kaylan Burleigh, et al.. Overview of the DESI Legacy Imaging Surveys. 2019. ⟨hal-02003991⟩