Skip to main content

Research Repository

Advanced Search

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, Stéphanie; 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.; Yèche, 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.; Briceño, César; 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, Timothée; DeVries, Kaitlin; Dey, Sharmila; Dhungana, Govinda; Dickinson, Mark; Ding, Zhejie; Donaldson, John B.;...

Overview of the DESI Legacy Imaging Surveys Thumbnail


Authors

Arjun Dey

David J. Schlegel

Dustin Lang

Robert Blum

Kaylan Burleigh

Xiaohui Fan

Joseph R. Findlay

Doug Finkbeiner

David Herrera

Stéphanie Juneau

Martin Landriau

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 Yèche

Hu Zou

Xu Zhou

Behzad Abareshi

T.M.C. Abbott

Bela Abolfathi

C. Aguilera

Shadab Alam

Lori Allen

A. Alvarez

James Annis

Behzad Ansarinejad

Marie Aubert

Jacqueline Beechert

Eric F. Bell

Segev Y. BenZvi

Florian Beutler

Richard M. Bielby

Adam S. Bolton

César Briceño

Elizabeth J. Buckley-Geer

Karen Butler

Annalisa Calamida

Raymond G. Carlberg

Paul Carter

Ricard Casas

Francisco J. Castander

Yumi Choi

Johan Comparat

Elena Cukanovaite

Timothée Delubac

Kaitlin DeVries

Sharmila Dey

Govinda Dhungana

Mark Dickinson

Zhejie Ding

John B. Donaldson

Yutong Duan

Christopher J. Duckworth

Sarah Eftekharzadeh

Daniel J. Eisenstein

Thomas Etourneau

Parker A. Fagrelius

Jay Farihi

Mike Fitzpatrick

Andreu Font-Ribera

Leah Fulmer

Boris T. Gänsicke

Enrique Gaztanaga

Koshy George

David W. Gerdes

Satya Gontcho A Gontcho

Claudio Gorgoni

Gregory Green

Julien Guy

Diane Harmer

M. Hernandez

Klaus Honscheid

Lijuan (Wendy) Huang

David J. James

Buell T. Jannuzi

Linhua Jiang

Richard Joyce

Armin Karcher

Sonia Karkar

Robert Kehoe

Jean-Paul Kneib

Andrea Kueter-Young

Ting-Wen Lan

Tod R. Lauer

Laurent Le Guillou

Auguste Le Van Suu

Jae Hyeon Lee

Michael Lesser

Laurence Perreault Levasseur

Ting S. Li

Justin L. Mann

Robert Marshall

C.E. Martínez-Vázquez

Paul Martini

Hélion du Mas des Bourboux

Sean McManus

Tobias Gabriel Meier

Brice Ménard

Nigel Metcalfe

Andrea Muñoz-Gutiérrez

Joan Najita

Kevin Napier

Gautham Narayan

Jeffrey A. Newman

Jundan Nie

Brian Nord

Dara J. Norman

Knut A.G. Olsen

Anthony Paat

Nathalie Palanque-Delabrouille

Xiyan Peng

Claire L. Poppett

Megan R. Poremba

Abhishek Prakash

David Rabinowitz

Anand Raichoor

Mehdi Rezaie

A.N. Robertson

Natalie A. Roe

Ashley J. Ross

Nicholas P. Ross

Gregory Rudnick

Sasha Safonova

Abhijit Saha

F. Javier Sánchez

Elodie Savary

Heidi Schweiker

Adam Scott

Hee-Jong Seo

Huanyuan Shan

David R. Silva

Zachary Slepian

Christian Soto

David Sprayberry

Ryan Staten

Coley M. Stillman

Robert J. Stupak

David L. Summers

Suk Sien Tie

H. Tirado

Mariana Vargas-Magaña

A. Katherina Vivas

Risa H. Wechsler

Doug Williams

Jinyi Yang

Qian Yang

Tolga Yapici

Dennis Zaritsky

A. Zenteno

Kai Zhang

Tianmeng Zhang

Rongpu Zhou

Zhimin Zhou



Abstract

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 ≈14,000 deg2 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 μm) 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.

Citation

Dey, A., Schlegel, D. J., Lang, D., Blum, R., Burleigh, K., Fan, X., …Zhou, Z. (2019). Overview of the DESI Legacy Imaging Surveys. Astronomical Journal, 157(5), Article 168. https://doi.org/10.3847/1538-3881/ab089d

Journal Article Type Article
Acceptance Date Feb 18, 2019
Online Publication Date Apr 9, 2019
Publication Date Apr 9, 2019
Deposit Date May 9, 2019
Publicly Available Date Mar 28, 2024
Journal Astronomical Journal
Print ISSN 0004-6256
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 157
Issue 5
Article Number 168
DOI https://doi.org/10.3847/1538-3881/ab089d

Files





You might also like



Downloadable Citations