Overview of the DESI Legacy Imaging Surveys

Dey, Arjun ; Schlegel, David J. ; Lang, Dustin ; Blum, Robert ; Burleigh, Kaylan ; Fan, Xiaohui ; Findlay, Joseph R. ; Finkbeiner, Doug ; Herrera, David ; Juneau, Stephanie ; Landriau, Martin ; Levi, Michael ; McGreer, Ian ; Meisner, Aaron ; Myers, Adam D. ; Moustakas, John ; Nugent, Peter ; Patej, Anna ; Schlafly, Edward F. ; Walker, Alistair R. ; Valdes, Francisco ; Weaver, Benjamin A. ; Yeche, Christophe ; Zou, Hu ; Zhou, Xu ; Abareshi, Behzad ; Abbott, T. M. C. ; Abolfathi, Bela ; Aguilera, C. ; Alam, Shadab ; Allen, Lori ; Alvarez, A. ; Annis, James ; Ansarinejad, Behzad ; Aubert, Marie ; Beechert, Jacqueline ; Bell, Eric F. ; BenZvi, Segev Y. ; Beutler, Florian ; Bielby, Richard M. ; Bolton, Adam S. ; Briceno, Cesar ; Buckley-Geer, Elizabeth J. ; Butler, Karen ; Calamida, Annalisa ; Carlberg, Raymond G. ; Carter, Paul ; Casas, Ricard ; Castander, Francisco J. ; Choi, Yumi ; Comparat, Johan ; Cukanovaite, Elena ; Delubac, Timothee ; DeVries, Kaitlin ; Dey, Sharmila ; Dhungana, Govinda ; Dickinson, Mark ; Ding, Zhejie ; Donaldson, John B. ; Duan, Yutong ; Duckworth, Christopher J. ; Eftekharzadeh, Sarah ; Eisenstein, Daniel J. ; Etourneau, Thomas ; Fagrelius, Parker A. ; Farihi, Jay ; Fitzpatrick, Mike ; Font-Ribera, Andreu ; Fulmer, Leah ; Gansicke, Boris T. ; Gaztanaga, Enrique ; George, Koshy ; Gerdes, David W. ; Gontcho, Satya Gontcho A. ; Gorgoni, Claudio ; Green, Gregory ; Guy, Julien ; Harmer, Diane ; Hernandez, M. ; Honscheid, Klaus ; Huang, Lijuan (Wendy) ; James, David J. ; Jannuzi, Buell T. ; Jiang, Linhua ; Joyce, Richard ; Karcher, Armin ; Karkar, Sonia ; Kehoe, Robert ; Kneib, Jean-Paul ; Kueter-Young, Andrea ; Lan, Ting-Wen ; Lauer, Tod R. ; Le Guillou, Laurent ; Le Van Suu, Auguste ; Lee, Jae Hyeon ; Lesser, Michael ; Levasseur, Laurence Perreault ; Li, Ting S. ; Mann, Justin L. ; Marshall, Robert ; Martinez-Vazquez, C. E. ; Martini, Paul ; des Bourboux, Helion du Mas ; McManus, Sean ; Meier, Tobias Gabriel ; Menard, Brice ; Metcalfe, Nigel ; Munoz-Gutierrez, Andrea ; Najita, Joan ; Napier, Kevin ; Narayan, Gautham ; Newman, Jeffrey A. ; Nie, Jundan ; Nord, Brian ; Norman, Dara J. ; Olsen, Knut A. G. ; Paat, Anthony ; Palanque-Delabrouille, Nathalie ; Peng, Xiyan ; Poppett, Claire L. ; Poremba, Megan R. ; Prakash, Abhishek ; Rabinowitz, David ; Raichoor, Anand ; Rezaie, Mehdi ; Robertson, A. N. ; Roe, Natalie A. ; Ross, Ashley J. ; Ross, Nicholas P. ; Rudnick, Gregory ; Safonova, Sasha ; Saha, Abhijit ; Sanchez, F. Javier ; Savary, Elodie ; Schweiker, Heidi ; Scott, Adam ; Seo, Hee-Jong ; Shan, Huanyuan ; Silva, David R. ; Slepian, Zachary ; Soto, Christian ; Sprayberry, David ; Staten, Ryan ; Stillman, Coley M. ; Stupak, Robert J. ; Summers, David L. ; Tie, Suk Sien ; Tirado, H. ; Vargas-Magana, Mariana ; Vivas, A. Katherina ; Wechsler, Risa H. ; Williams, Doug ; Yang, Jinyi ; Yang, Qian ; Yapici, Tolga ; Zaritsky, Dennis ; Zenteno, A. ; Zhang, Kai ; Zhang, Tianmeng ; Zhou, Rongpu ; Zhou, Zhimin

The DESI Legacy Imaging Surveys (http://legacysurvey.org/) 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 approximate to 14,000 deg(2) 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 dynamically adjusting the exposure times and pointing selection during observing that results in a survey of nearly uniform depth. In addition to calibrated images, the project is delivering a catalog, constructed by using a probabilistic inference-based approach to estimate source shapes and brightnesses. The catalog includes photometry from the grz optical bands and from four mid-infrared bands (at 3.4, 4.6, 12, and 22 mu m) observed by the Wide-field Infrared Survey Explorer 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.


Publié dans:
Astronomical Journal, 157, 5, 168
Année
May 01 2019
Publisher:
Bristol, IOP PUBLISHING LTD
ISSN:
0004-6256
1538-3881
Mots-clefs:
Laboratoires:




 Notice créée le 2019-06-18, modifiée le 2019-06-25


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