Open Access
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
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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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The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: GLAM-QPM mock galaxy catalogues for the emission line galaxy sample
Sicheng Lin,Jeremy L. Tinker,Anatoly Klypin,Francisco Prada,Michael R. Blanton,Johan Comparat,Kyle S. Dawson,Arnaud de Mattia,Hélion du Mas des Bourboux,Will J. Percival,Will J. Percival,Anand Raichoor,Graziano Rossi,Alex Smith,Cheng Zhao +14 more
TL;DR: SDSS-IV is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group and the French Participation Group.
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SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release
Nicolas Clerc,C. C. Kirkpatrick,C. C. Kirkpatrick,Alexis Finoguenov,Alexis Finoguenov,R. Capasso,Johan Comparat,S. Damsted,K. Furnell,A. Kukkola,J. Ider Chitham,Andrea Merloni,Mara Salvato,A. Gueguen,Tom Dwelly,Chris A. Collins,A. Saro,A. Saro,G. Erfanianfar,Donald P. Schneider,J. R. Brownstein,Gary A. Mamon,N. Padilla,Eric Jullo,Dmitry Bizyaev +24 more
TL;DR: SPIDERS as discussed by the authors is a large spectroscopic program for X-ray selected galaxy clusters as part of the Sloan Digital Sky Survey-IV (SDSS-IV).
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The rise and fall of an extraordinary Ca-rich transient: the discovery of ATLAS19dqr/SN 2019bkc
S. J. Prentice,S. J. Prentice,S. J. Prentice,Kate Maguire,A. Flörs,A. Flörs,A. Flörs,Stefan Taubenberger,Cosimo Inserra,C. Frohmaier,T.-W. Chen,Joseph P. Anderson,Chris Ashall,P. Clark,Morgan Fraser,Lluís Galbany,Avishay Gal-Yam,Mariusz Gromadzki,Claudia P. Gutiérrez,Phil A. James,Peter G. Jonker,Peter G. Jonker,Erkki Kankare,Giorgos Leloudas,M. R. Magee,Paolo A. Mazzali,Paolo A. Mazzali,Matt Nicholl,Matt Nicholl,M. Pursiainen,K. Skillen,Stephen J. Smartt,K. W. Smith,Christian Vogl,D. R. Young +34 more
TL;DR: In this article, the authors present the observations and analysis of ATLAS19dqr/SN 2019bkc, an extraordinary rapidly evolving transient event located in an isolated environment, tens of kiloparsecs from any likely host.
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A null test to probe the scale dependence of the growth of structure as a test of general relativity
TL;DR: In this article, a scale-independent null test for dark energy was proposed, which relies only on very few assumptions about cosmology, and does not require any modelling of the growth of structure.
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Preliminary Target Selection for the DESI Bright Galaxy Survey (BGS)
Omar Ruiz-Macias,Pauline Zarrouk,Shaun Cole,Peder Norberg,Carlton M. Baugh,David Brooks,Arjun Dey,Yutong Duan,Sarah Eftekharzadeh,Daniel J. Eisenstein,Jaime E. Forero-Romero,Enrique Gaztanaga,ChangHoon Hahn,Robert Kehoe,Martin Landriau,Dustin Lang,Michael E. Levi,John R. Lucey,Aaron M. Meisner,John Moustakas,Adam D. Myers,Nathalie Palanque-Delabrouille,Claire Poppett,Francisco Prada,Anand Raichoor,David J. Schlegel,Michael Schubnell,Gregory Tarlé,David H. Weinberg,Michael J. Wilson,Christophe Yèche +30 more
TL;DR: The Dark Energy Spectroscopic Instrument (DESI) will execute a nearly magnitude-limited survey of low redshift galaxies as mentioned in this paper, which will yield the most precise measurements to date of baryon acoustic oscillations and redshift-space distortions at low-redshift.
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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
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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.