The DECam Local Volume Exploration Survey Data Release 2

Astro Data Lab; DELVE Collaboration; DES Collaboration

doi:10.3847/1538-4365/ac78eb

The DECam Local Volume Exploration Survey Data Release 2

Astro Data Lab, DELVE Collaboration, DES Collaboration

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Abstract

We present the second public data release (DR2) from the DECam Local Volume Exploration survey (DELVE). DELVE DR2 combines new DECam observations with archival DECam data from the Dark Energy Survey, the DECam Legacy Survey, and other DECam community programs. DELVE DR2 consists of ∼160,000 exposures that cover >21,000 deg² of the high-Galactic-latitude (∣b∣ > 10°) sky in four broadband optical/near-infrared filters (g, r, i, z). DELVE DR2 provides point-source and automatic aperture photometry for ∼2.5 billion astronomical sources with a median 5σ point-source depth of g = 24.3, r = 23.9, i = 23.5, and z = 22.8 mag. A region of ∼17,000 deg² has been imaged in all four filters, providing four-band photometric measurements for ∼618 million astronomical sources. DELVE DR2 covers more than 4 times the area of the previous DELVE data release and contains roughly 5 times as many astronomical objects. DELVE DR2 is publicly available via the NOIRLab Astro Data Lab science platform.

Original language	English
Article number	38
Journal	Astrophysical Journal, Supplement Series
Volume	261
Issue number	2
DOIs	https://doi.org/10.3847/1538-4365/ac78eb
State	Published - Aug 1 2022

Funding

A.B.P. acknowledges support from NSF grant AST-1813881. J.L.C. acknowledges support from NSF grant AST-1816196. J.D.S. acknowledges support from NSF grant AST-1714873. S.R.M. acknowledges support from NSF grant AST-1909497. D.J.S. acknowledges support from NSF grants AST-1821967 and AST-1813708. D.C. acknowledges support from NSF grant AST-1814208. B.M.P. acknowledges support from the NSF Astronomy and Astrophysics Postdoctoral Fellowship under award AST-2001663. S.M. acknowledges support from the NSF Graduate Research Fellowship under grant DGE-1656518. D.M.D. acknowledges financial support from the State Agency for Research of the Spanish MCIU through the “Centre of Excellence Severo Ochoa” award for the Instituto de Astrofísica de Andalucía (SEV-2017-0709). C.P.M.B. and M.R.L.C. acknowledge support from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement no. 682115). L.S.S. acknowledges the financial support from FAPESP through the grant #2020/03301-5. J.A.C.B. acknowledges support from ANID FONDECYT Regular 1220083. Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundação Carlos Chagas Filho de Amparo á Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovação, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the Dark Energy Survey. The DELVE project is partially supported by Fermilab LDRD project L2019-011, the NASA Fermi Guest Investigator Program Cycle 9 grant 91201, and the National Science Foundation (NSF) under grant AST-2108168. This work is supported by the Fermilab Visiting Scholars Award Program from the Universities Research Association. The DES data management system is supported by the National Science Foundation under grant Nos. AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MICINN under grants ESP2017-89838, PGC2018-094773, PGC2018-102021, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciência e Tecnologia (INCT) do e-Universo (CNPq grant 465376/2014-2). This work has made use of data from the European Space Agency (ESA) mission Gaia ( https://www.cosmos.esa.int/gaia ), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium ). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

Funders	Funder number
ANID FONDECYT	1220083
Brazilian Instituto Nacional de Ciência e Tecnologia
Centre of Excellence Severo Ochoa
Collaborating Institutions in the Dark Energy Survey
Fermi Research Alliance, LLC	DE-AC02-07CH11359
Fermilab LDRD	L2019-011
Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University
Science and Technology Facilities Council of the United Kingdom
State Agency for Research
National Science Foundation	AST-1814208, AST-1714873, AST-1816196, DGE-1656518, AST-1138766, AST-1813881, AST-1909497, AST-1821967, AST-1536171, AST-1813708, AST-2001663, AST-2108168
U.S. Department of Energy
National Aeronautics and Space Administration	91201
Office of Science
High Energy Physics
Ohio State University
University of Chicago
National Centre for Supercomputing Applications
Seventh Framework Programme
Higher Education Funding Council for England
Engineering Research Centers	240672, 306478, 291329
Universities Space Research Association
European Commission
European Research Council
Deutsche Forschungsgemeinschaft
Fundação de Amparo à Pesquisa do Estado de São Paulo	2020/03301-5
Generalitat de Catalunya
Ministério da Ciência, Tecnologia e Inovação
Conselho Nacional de Desenvolvimento Científico e Tecnológico	465376/2014-2
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Financiadora de Estudos e Projetos
Ministerio de Ciencia e Innovación	SEV-2016-0588, SEV-2016-0597, MDM-2015-0509, PGC2018-094773, PGC2018-102021, ESP2017-89838
Seventh Framework Programme
Instituto Nacional de Ciência e Tecnologia para Excitotoxicidade e Neuroproteção
Horizon 2020	682115
Ministry of Education and Science of Ukraine
European Regional Development Fund
Instituto de Astrofísica de Andalucía	SEV-2017-0709

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10.3847/1538-4365/ac78eb

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@article{eefb6dca2ef34ec0851b86115ce9582b,

title = "The DECam Local Volume Exploration Survey Data Release 2",

abstract = "We present the second public data release (DR2) from the DECam Local Volume Exploration survey (DELVE). DELVE DR2 combines new DECam observations with archival DECam data from the Dark Energy Survey, the DECam Legacy Survey, and other DECam community programs. DELVE DR2 consists of ∼160,000 exposures that cover >21,000 deg2 of the high-Galactic-latitude (∣b∣ > 10°) sky in four broadband optical/near-infrared filters (g, r, i, z). DELVE DR2 provides point-source and automatic aperture photometry for ∼2.5 billion astronomical sources with a median 5σ point-source depth of g = 24.3, r = 23.9, i = 23.5, and z = 22.8 mag. A region of ∼17,000 deg2 has been imaged in all four filters, providing four-band photometric measurements for ∼618 million astronomical sources. DELVE DR2 covers more than 4 times the area of the previous DELVE data release and contains roughly 5 times as many astronomical objects. DELVE DR2 is publicly available via the NOIRLab Astro Data Lab science platform.",

author = "{Astro Data Lab} and {DELVE Collaboration} and {DES Collaboration} and A. Drlica-Wagner and Ferguson, {P. S.} and M. Adam{\'o}w and M. Aguena and S. Allam and F. Andrade-Oliveira and D. Bacon and K. Bechtol and Bell, {E. F.} and E. Bertin and P. Bilaji and S. Bocquet and Bom, {C. R.} and D. Brooks and Burke, {D. L.} and Carballo-Bello, {J. A.} and Carlin, {J. L.} and {Carnero Rosell}, A. and {Carrasco Kind}, M. and J. Carretero and Castander, {F. J.} and W. Cerny and C. Chang and Y. Choi and C. Conselice and M. Costanzi and D. Crnojevi{\'c} and {da Costa}, {L. N.} and {De Vicente}, J. and S. Desai and J. Esteves and S. Everett and I. Ferrero and M. Fitzpatrick and B. Flaugher and D. Friedel and J. Frieman and J. Garc{\'i}a-Bellido and M. Gatti and E. Gaztanaga and Gerdes, {D. W.} and D. Gruen and Gruendl, {R. A.} and J. Gschwend and Hartley, {W. G.} and D. Hernandez-Lang and Hinton, {S. R.} and Hollowood, {D. L.} and K. Honscheid and E. Suchyta",

note = "Publisher Copyright: {\textcopyright} 2022. The Author(s). Published by the American Astronomical Society.",

year = "2022",

month = aug,

day = "1",

doi = "10.3847/1538-4365/ac78eb",

language = "English",

volume = "261",

journal = "Astrophysical Journal, Supplement Series",

issn = "0067-0049",

publisher = "American Astronomical Society",

number = "2",

}

TY - JOUR

T1 - The DECam Local Volume Exploration Survey Data Release 2

AU - Astro Data Lab

AU - DELVE Collaboration

AU - DES Collaboration

AU - Drlica-Wagner, A.

AU - Ferguson, P. S.

AU - Adamów, M.

AU - Aguena, M.

AU - Allam, S.

AU - Andrade-Oliveira, F.

AU - Bacon, D.

AU - Bechtol, K.

AU - Bell, E. F.

AU - Bertin, E.

AU - Bilaji, P.

AU - Bocquet, S.

AU - Bom, C. R.

AU - Brooks, D.

AU - Burke, D. L.

AU - Carballo-Bello, J. A.

AU - Carlin, J. L.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - Castander, F. J.

AU - Cerny, W.

AU - Chang, C.

AU - Choi, Y.

AU - Conselice, C.

AU - Costanzi, M.

AU - Crnojević, D.

AU - da Costa, L. N.

AU - De Vicente, J.

AU - Desai, S.

AU - Esteves, J.

AU - Everett, S.

AU - Ferrero, I.

AU - Fitzpatrick, M.

AU - Flaugher, B.

AU - Friedel, D.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gatti, M.

AU - Gaztanaga, E.

AU - Gerdes, D. W.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Hartley, W. G.

AU - Hernandez-Lang, D.

AU - Hinton, S. R.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - Suchyta, E.

PY - 2022/8/1

Y1 - 2022/8/1

N2 - We present the second public data release (DR2) from the DECam Local Volume Exploration survey (DELVE). DELVE DR2 combines new DECam observations with archival DECam data from the Dark Energy Survey, the DECam Legacy Survey, and other DECam community programs. DELVE DR2 consists of ∼160,000 exposures that cover >21,000 deg2 of the high-Galactic-latitude (∣b∣ > 10°) sky in four broadband optical/near-infrared filters (g, r, i, z). DELVE DR2 provides point-source and automatic aperture photometry for ∼2.5 billion astronomical sources with a median 5σ point-source depth of g = 24.3, r = 23.9, i = 23.5, and z = 22.8 mag. A region of ∼17,000 deg2 has been imaged in all four filters, providing four-band photometric measurements for ∼618 million astronomical sources. DELVE DR2 covers more than 4 times the area of the previous DELVE data release and contains roughly 5 times as many astronomical objects. DELVE DR2 is publicly available via the NOIRLab Astro Data Lab science platform.

AB - We present the second public data release (DR2) from the DECam Local Volume Exploration survey (DELVE). DELVE DR2 combines new DECam observations with archival DECam data from the Dark Energy Survey, the DECam Legacy Survey, and other DECam community programs. DELVE DR2 consists of ∼160,000 exposures that cover >21,000 deg2 of the high-Galactic-latitude (∣b∣ > 10°) sky in four broadband optical/near-infrared filters (g, r, i, z). DELVE DR2 provides point-source and automatic aperture photometry for ∼2.5 billion astronomical sources with a median 5σ point-source depth of g = 24.3, r = 23.9, i = 23.5, and z = 22.8 mag. A region of ∼17,000 deg2 has been imaged in all four filters, providing four-band photometric measurements for ∼618 million astronomical sources. DELVE DR2 covers more than 4 times the area of the previous DELVE data release and contains roughly 5 times as many astronomical objects. DELVE DR2 is publicly available via the NOIRLab Astro Data Lab science platform.

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U2 - 10.3847/1538-4365/ac78eb

DO - 10.3847/1538-4365/ac78eb

M3 - Article

AN - SCOPUS:85136490741

SN - 0067-0049

VL - 261

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

IS - 2

M1 - 38

ER -

The DECam Local Volume Exploration Survey Data Release 2

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