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Overview of the DESI Legacy Imaging Surveys
David J. Schlegel,Jacqueline Beechert,Kaylan J. Burleigh,Arjun Dey,Joseph R. Findlay,David Herrera,Stéphanie Juneau,Martin Landriau,Dustin Lang,Aaron M. Meisner,John Moustakas,Adam D. Myers,Edward F. Schlafly,F. Valdes,Benjamin A. Weaver,Jinyi Yang,Christophe Yèche +16 more
- Vol. 233
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TLDR
The DESI Legacy Imaging Surveys (http://legacysurvey.org/) project is 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.Abstract:
Author(s): Huang, L; Dey, A; Schlegel, DJ; Lang, D; Blum, R; Burleigh, K; Fan, X; Findlay, JR; Finkbeiner, D; Herrera, D; Juneau, S; Landriau, M; Levi, M; McGreer, I; Meisner, A; Myers, AD; Moustakas, J; Nugent, P; Patej, A; Schlafly, EF; Walker, AR; Valdes, F; Weaver, BA; Yeche, C; Zou, H; Zhou, X; Abareshi, B; Abbott, TMC; Abolfathi, B; Aguilera, C; Alam, S; Allen, L; Alvarez, A; Annis, J; Ansarinejad, B; Aubert, M; Beechert, J; Bell, EF; Benzvi, SY; Beutler, F; Bielby, RM; Bolton, AS; Briceno, C; Buckley-Geer, EJ; Butler, K; Calamida, A; Carlberg, RG; Carter, P; Casas, R; Castander, FJ; Choi, Y; Comparat, J; Cukanovaite, E; Delubac, T; Devries, K; Dey, S; Dhungana, G; Dickinson, M; Ding, Z; Donaldson, JB; Duan, Y; Duckworth, CJ; Eftekharzadeh, S; Eisenstein, DJ; Etourneau, T; Fagrelius, PA; Farihi, J; Fitzpatrick, M; Font-Ribera, A; Fulmer, L; Gansicke, BT; Gaztanaga, E; George, K; Gerdes, DW; A Gontcho, SG; Gorgoni, C; Green, G; Guy, J; Harmer, D; Hernandez, M; Honscheid, K; Huang, LW; James, DJ; Jannuzi, BT; Jiang, L | Abstract: © 2019. The American Astronomical Society. All rights reserved.. 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.read more
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Survey of Gravitationally Lensed Objects in HSC Imaging (SuGOHI) – VII. Discovery and confirmation of three strongly lensed quasars
Anton T. Jaelani,Anton T. Jaelani,Cristian Rusu,Issha Kayo,Anupreeta More,Anupreeta More,Alessandro Sonnenfeld,Alessandro Sonnenfeld,John D. Silverman,John D. Silverman,John D. Silverman,M. Schramm,Timo Anguita,Naohisa Inada,Daichi Kondo,Paul L. Schechter,Khee Gan Lee,Masamune Oguri,Masamune Oguri,James H. H. Chan,Kenneth C. Wong,Kaiki Taro Inoue +21 more
TL;DR: In this paper, spectroscopic confirmation of three new two-image gravitationally-lensed quasars, compiled from existing strong lens and X-ray catalogs, is presented.
Journal ArticleDOI
Multiwavelength Observations of GRB 181201A and Detection of Its Associated Supernova
S. Belkin,S. Belkin,Alexei Pozanenko,Alexei Pozanenko,E. Mazaeva,A. Volnova,P. Yu. Minaev,Nozomu Tominaga,Nozomu Tominaga,S. A. Grebenev,I. V. Chelovekov,David A. H. Buckley,S. I. Blinnikov,S. I. Blinnikov,A. E. Volvach,L. N. Volvach,R. Ya. Inasaridze,E. Klunko,Igor Molotov,I. Reva,V. Rumyantsev,D. Chestnov +21 more
TL;DR: In this paper, multicolor photometric observations in the optical band and a comprehensive study in the X-ray, gamma-ray and radio bands are presented for GRB 181201A and its afterglow.
Journal ArticleDOI
The clustering of galaxies in the DESI imaging legacy surveys DR8: I. The luminosity and color dependent intrinsic clustering
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Journal ArticleDOI
Strong Mg II and Fe II Absorbers at 2.2 < z < 6.0
Siwei Zou,Lin-Hua Jiang,Yue Shen,Jin Wu,Eduardo Bañados,Xiaohui Fan,Luis C. Ho,Dominik A. Riechers,Bram Venemans,Marianne Vestergaard,Marianne Vestergaard,Fabian Walter,Feige Wang,Chris J. Willott,Ravi Joshi,Xue-Bing Wu,Jinyi Yang +16 more
TL;DR: In this paper, a study of strong intervening absorption systems in the near-IR spectra of 31 luminous quasars at 5.7 magnitude was presented, which suggests that the gas traced by the absorbers are potentially affected by galactic superwinds.
Journal ArticleDOI
Optical Spectroscopy of SRG/eROSITA Objects with 2.5-m Telescope at the Caucasus Mountain Observatory of the SAI MSU
A. V. Dodin,Sergey A. Potanin,N. I. Shatsky,A. Belinski,K. Atapin,M. A. Burlak,Oleg V. Egorov,A. M. Tatarnikov,Konstantin Postnov,Konstantin Postnov,M. I. Belvedersky,M. I. Belvedersky,R. A. Burenin,Marat Gilfanov,Marat Gilfanov,P. S. Medvedev,A. V. Meshcheryakov,A. V. Meshcheryakov,S. Yu. Sazonov,G. A. Khorunzhev,R. A. Sunyaev,R. A. Sunyaev +21 more
TL;DR: In this article, the authors determined the types and found the redshifts for six new X-ray sources (four quasars and two galaxy clusters) detected by the SRG space observatory during the Lockman Hole observations at the eROSITA performance verification phase.
References
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TL;DR: The Sloan Digital Sky Survey (SDSS) as discussed by the authors provides the data to support detailed investigations of the distribution of luminous and non-luminous matter in the universe: a photometrically and astrometrically calibrated digital imaging survey of π sr above about Galactic latitude 30° in five broad optical bands to a depth of g' ~ 23 mag.
Journal ArticleDOI
The wide-field infrared survey explorer (wise): mission description and initial on-orbit performance
Edward L. Wright,Peter Eisenhardt,Amy Mainzer,Michael E. Ressler,Roc M. Cutri,Thomas H. Jarrett,J. Davy Kirkpatrick,Deborah L. Padgett,Robert S. McMillan,Michael F. Skrutskie,Spencer A. Stanford,Spencer A. Stanford,Martin Cohen,Russell G. Walker,John C. Mather,David Leisawitz,Thomas N. Gautier,Ian S. McLean,Dominic J. Benford,Carol J. Lonsdale,Andrew Blain,B. Mendez,William R. Irace,Valerie G. Duval,Fengchuan Liu,Don Royer,I. Heinrichsen,Joan Howard,Mark A. Shannon,Martha Kendall,Amy L. Walsh,Mark F. Larsen,Joel Cardon,Scott Schick,Mark Schwalm,Mohamed Abid,Beth Fabinsky,Larry Naes,Chao-Wei Tsai +38 more
TL;DR: The Wide-field Infrared Survey Explorer (WISE) is mapping the whole sky following its launch on 14 December 2009 and completed its first full coverage of the sky on July 17 as discussed by the authors.