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Title: The Dark Energy Survey Data Release 2

Abstract

In this work, we present the second public data release of the Dark Energy Survey, DES DR2, based on optical/near-infrared imaging by the Dark Energy Camera mounted on the 4 m Blanco telescope at Cerro Tololo Inter-American Observatory in Chile. DES DR2 consists of reduced single-epoch and coadded images, a source catalog derived from coadded images, and associated data products assembled from 6 yr of DES science operations. This release includes data from the DES wide-area survey covering ~5000 deg2 of the southern Galactic cap in five broad photometric bands, grizY. DES DR2 has a median delivered point-spread function FWHM of g = 1.11'', r = 0.95'', i = 0.88'', z = 0.83'', and Y = 0farcs90, photometric uniformity with a standard deviation of < 3 mmag with respect to Gaia DR2 G band, a photometric accuracy of ~11 mmag, and a median internal astrometric precision of ~27 mas. The median coadded catalog depth for a 1farcs95 diameter aperture at signal-to-noise ratio = 10 is g = 24.7, r = 24.4, i = 23.8, z = 23.1, and Y = 21.7 mag. DES DR2 includes ~691 million distinct astronomical objects detected in 10,169 coadded image tiles of size 0.534 deg2more » produced from 76,217 single-epoch images. After a basic quality selection, benchmark galaxy and stellar samples contain 543 million and 145 million objects, respectively. These data are accessible through several interfaces, including interactive image visualization tools, web-based query clients, image cutout servers, and Jupyter notebooks. DES DR2 constitutes the largest photometric data set to date at the achieved depth and photometric precision.« less

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Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Contributing Org.:
Linea Science Server
OSTI Identifier:
1817422
Alternate Identifier(s):
OSTI ID: 1819698; OSTI ID: 1821219; OSTI ID: 1824190; OSTI ID: 1872947
Report Number(s):
FERMILAB-PUB-21-004-AE; DES-2020-0630; arXiv:2101.05765
Journal ID: ISSN 0067-0049; TRN: US2213796
Grant/Contract Number:  
AC05-00OR22725; AC02-76SF00515; AC02-06CH11357; AC02-07CH11359; SC0019193
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Supplement Series
Additional Journal Information:
Journal Volume: 255; Journal Issue: 2; Journal ID: ISSN 0067-0049
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; dark energy; cosmology; extragalactic astronomy; surveys; redshift surveys; optical astronomy; near infrared astronomy

Citation Formats

Abbott, T. C., Adamów, M., Aguena, M., Allam, S., Amon, A., Annis, J., Avila, S., Bacon, D., Banerji, M., Bechtol, K., Becker, M. R., Bernstein, G. M., Bertin, E., Bhargava, S., Bridle, S. L., Brooks, D., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Cawthon, R., Chang, C., Choi, A., Conselice, C., Costanzi, M., Crocce, M., da Costa, L. N., Davis, T. M., De Vicente, J., DeRose, J., Desai, S., Diehl, H. T., Dietrich, J. P., Drlica-Wagner, A., Eckert, K., Elvin-Poole, J., Everett, S., Evrard, A. E., Ferrero, I., Ferté, A., Flaugher, B., Fosalba, P., Friedel, D., Frieman, J., García-Bellido, J., Gaztanaga, E., Gelman, L., Gerdes, D. W., Giannantonio, T., Gill, M. S., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Jeltema, T., Johnson, M. D., Kent, S., Kron, R., Kuehn, K., Kuropatkin, N., Lahav, O., Li, T. S., Lidman, C., Lin, H., MacCrann, N., Maia, M. G., Manning, T. A., Maloney, J. D., March, M., Marshall, J. L., Martini, P., Melchior, P., Menanteau, F., Miquel, R., Morgan, R., Myles, J., Neilsen, E., Ogando, R. C., Palmese, A., Paz-Chinchón, F., Petravick, D., Pieres, A., Plazas, A. A., Pond, C., Rodriguez-Monroy, M., Romer, A. K., Roodman, A., Rykoff, E. S., Sako, M., Sanchez, E., Santiago, B., Scarpine, V., Serrano, S., Sevilla-Noarbe, I., Smith, J. Allyn, Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. C., Tarle, G., Thomas, D., To, C., Tremblay, P. E., Troxel, M. A., Tucker, D. L., Turner, D. J., Varga, T. N., Walker, A. R., Wechsler, R. H., Weller, J., Wester, W., Wilkinson, R. D., Yanny, B., Zhang, Y., Nikutta, R., Fitzpatrick, M., Jacques, A., Scott, A., Olsen, K., Huang, L., Herrera, D., Juneau, S., Nidever, D., Weaver, B. A., Adean, C., Correia, V., de Freitas, M., Freitas, F. N., Singulani, C., and Vila-Verde, G. The Dark Energy Survey Data Release 2. United States: N. p., 2021. Web. doi:10.3847/1538-4365/ac00b3.
Abbott, T. C., Adamów, M., Aguena, M., Allam, S., Amon, A., Annis, J., Avila, S., Bacon, D., Banerji, M., Bechtol, K., Becker, M. R., Bernstein, G. M., Bertin, E., Bhargava, S., Bridle, S. L., Brooks, D., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Cawthon, R., Chang, C., Choi, A., Conselice, C., Costanzi, M., Crocce, M., da Costa, L. N., Davis, T. M., De Vicente, J., DeRose, J., Desai, S., Diehl, H. T., Dietrich, J. P., Drlica-Wagner, A., Eckert, K., Elvin-Poole, J., Everett, S., Evrard, A. E., Ferrero, I., Ferté, A., Flaugher, B., Fosalba, P., Friedel, D., Frieman, J., García-Bellido, J., Gaztanaga, E., Gelman, L., Gerdes, D. W., Giannantonio, T., Gill, M. S., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Jeltema, T., Johnson, M. D., Kent, S., Kron, R., Kuehn, K., Kuropatkin, N., Lahav, O., Li, T. S., Lidman, C., Lin, H., MacCrann, N., Maia, M. G., Manning, T. A., Maloney, J. D., March, M., Marshall, J. L., Martini, P., Melchior, P., Menanteau, F., Miquel, R., Morgan, R., Myles, J., Neilsen, E., Ogando, R. C., Palmese, A., Paz-Chinchón, F., Petravick, D., Pieres, A., Plazas, A. A., Pond, C., Rodriguez-Monroy, M., Romer, A. K., Roodman, A., Rykoff, E. S., Sako, M., Sanchez, E., Santiago, B., Scarpine, V., Serrano, S., Sevilla-Noarbe, I., Smith, J. Allyn, Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. C., Tarle, G., Thomas, D., To, C., Tremblay, P. E., Troxel, M. A., Tucker, D. L., Turner, D. J., Varga, T. N., Walker, A. R., Wechsler, R. H., Weller, J., Wester, W., Wilkinson, R. D., Yanny, B., Zhang, Y., Nikutta, R., Fitzpatrick, M., Jacques, A., Scott, A., Olsen, K., Huang, L., Herrera, D., Juneau, S., Nidever, D., Weaver, B. A., Adean, C., Correia, V., de Freitas, M., Freitas, F. N., Singulani, C., & Vila-Verde, G. The Dark Energy Survey Data Release 2. United States. https://doi.org/10.3847/1538-4365/ac00b3
Abbott, T. C., Adamów, M., Aguena, M., Allam, S., Amon, A., Annis, J., Avila, S., Bacon, D., Banerji, M., Bechtol, K., Becker, M. R., Bernstein, G. M., Bertin, E., Bhargava, S., Bridle, S. L., Brooks, D., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Cawthon, R., Chang, C., Choi, A., Conselice, C., Costanzi, M., Crocce, M., da Costa, L. N., Davis, T. M., De Vicente, J., DeRose, J., Desai, S., Diehl, H. T., Dietrich, J. P., Drlica-Wagner, A., Eckert, K., Elvin-Poole, J., Everett, S., Evrard, A. E., Ferrero, I., Ferté, A., Flaugher, B., Fosalba, P., Friedel, D., Frieman, J., García-Bellido, J., Gaztanaga, E., Gelman, L., Gerdes, D. W., Giannantonio, T., Gill, M. S., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Jeltema, T., Johnson, M. D., Kent, S., Kron, R., Kuehn, K., Kuropatkin, N., Lahav, O., Li, T. S., Lidman, C., Lin, H., MacCrann, N., Maia, M. G., Manning, T. A., Maloney, J. D., March, M., Marshall, J. L., Martini, P., Melchior, P., Menanteau, F., Miquel, R., Morgan, R., Myles, J., Neilsen, E., Ogando, R. C., Palmese, A., Paz-Chinchón, F., Petravick, D., Pieres, A., Plazas, A. A., Pond, C., Rodriguez-Monroy, M., Romer, A. K., Roodman, A., Rykoff, E. S., Sako, M., Sanchez, E., Santiago, B., Scarpine, V., Serrano, S., Sevilla-Noarbe, I., Smith, J. Allyn, Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. C., Tarle, G., Thomas, D., To, C., Tremblay, P. E., Troxel, M. A., Tucker, D. L., Turner, D. J., Varga, T. N., Walker, A. R., Wechsler, R. H., Weller, J., Wester, W., Wilkinson, R. D., Yanny, B., Zhang, Y., Nikutta, R., Fitzpatrick, M., Jacques, A., Scott, A., Olsen, K., Huang, L., Herrera, D., Juneau, S., Nidever, D., Weaver, B. A., Adean, C., Correia, V., de Freitas, M., Freitas, F. N., Singulani, C., and Vila-Verde, G. Tue . "The Dark Energy Survey Data Release 2". United States. https://doi.org/10.3847/1538-4365/ac00b3. https://www.osti.gov/servlets/purl/1817422.
@article{osti_1817422,
title = {The Dark Energy Survey Data Release 2},
author = {Abbott, T. C. and Adamów, M. and Aguena, M. and Allam, S. and Amon, A. and Annis, J. and Avila, S. and Bacon, D. and Banerji, M. and Bechtol, K. and Becker, M. R. and Bernstein, G. M. and Bertin, E. and Bhargava, S. and Bridle, S. L. and Brooks, D. and Burke, D. L. and Carnero Rosell, A. and Carrasco Kind, M. and Carretero, J. and Castander, F. J. and Cawthon, R. and Chang, C. and Choi, A. and Conselice, C. and Costanzi, M. and Crocce, M. and da Costa, L. N. and Davis, T. M. and De Vicente, J. and DeRose, J. and Desai, S. and Diehl, H. T. and Dietrich, J. P. and Drlica-Wagner, A. and Eckert, K. and Elvin-Poole, J. and Everett, S. and Evrard, A. E. and Ferrero, I. and Ferté, A. and Flaugher, B. and Fosalba, P. and Friedel, D. and Frieman, J. and García-Bellido, J. and Gaztanaga, E. and Gelman, L. and Gerdes, D. W. and Giannantonio, T. and Gill, M. S. and Gruen, D. and Gruendl, R. A. and Gschwend, J. and Gutierrez, G. and Hartley, W. G. and Hinton, S. R. and Hollowood, D. L. and Honscheid, K. and Huterer, D. and James, D. J. and Jeltema, T. and Johnson, M. D. and Kent, S. and Kron, R. and Kuehn, K. and Kuropatkin, N. and Lahav, O. and Li, T. S. and Lidman, C. and Lin, H. and MacCrann, N. and Maia, M. G. and Manning, T. A. and Maloney, J. D. and March, M. and Marshall, J. L. and Martini, P. and Melchior, P. and Menanteau, F. and Miquel, R. and Morgan, R. and Myles, J. and Neilsen, E. and Ogando, R. C. and Palmese, A. and Paz-Chinchón, F. and Petravick, D. and Pieres, A. and Plazas, A. A. and Pond, C. and Rodriguez-Monroy, M. and Romer, A. K. and Roodman, A. and Rykoff, E. S. and Sako, M. and Sanchez, E. and Santiago, B. and Scarpine, V. and Serrano, S. and Sevilla-Noarbe, I. and Smith, J. Allyn and Smith, M. and Soares-Santos, M. and Suchyta, E. and Swanson, M. C. and Tarle, G. and Thomas, D. and To, C. and Tremblay, P. E. and Troxel, M. A. and Tucker, D. L. and Turner, D. J. and Varga, T. N. and Walker, A. R. and Wechsler, R. H. and Weller, J. and Wester, W. and Wilkinson, R. D. and Yanny, B. and Zhang, Y. and Nikutta, R. and Fitzpatrick, M. and Jacques, A. and Scott, A. and Olsen, K. and Huang, L. and Herrera, D. and Juneau, S. and Nidever, D. and Weaver, B. A. and Adean, C. and Correia, V. and de Freitas, M. and Freitas, F. N. and Singulani, C. and Vila-Verde, G.},
abstractNote = {In this work, we present the second public data release of the Dark Energy Survey, DES DR2, based on optical/near-infrared imaging by the Dark Energy Camera mounted on the 4 m Blanco telescope at Cerro Tololo Inter-American Observatory in Chile. DES DR2 consists of reduced single-epoch and coadded images, a source catalog derived from coadded images, and associated data products assembled from 6 yr of DES science operations. This release includes data from the DES wide-area survey covering ~5000 deg2 of the southern Galactic cap in five broad photometric bands, grizY. DES DR2 has a median delivered point-spread function FWHM of g = 1.11'', r = 0.95'', i = 0.88'', z = 0.83'', and Y = 0farcs90, photometric uniformity with a standard deviation of < 3 mmag with respect to Gaia DR2 G band, a photometric accuracy of ~11 mmag, and a median internal astrometric precision of ~27 mas. The median coadded catalog depth for a 1farcs95 diameter aperture at signal-to-noise ratio = 10 is g = 24.7, r = 24.4, i = 23.8, z = 23.1, and Y = 21.7 mag. DES DR2 includes ~691 million distinct astronomical objects detected in 10,169 coadded image tiles of size 0.534 deg2 produced from 76,217 single-epoch images. After a basic quality selection, benchmark galaxy and stellar samples contain 543 million and 145 million objects, respectively. These data are accessible through several interfaces, including interactive image visualization tools, web-based query clients, image cutout servers, and Jupyter notebooks. DES DR2 constitutes the largest photometric data set to date at the achieved depth and photometric precision.},
doi = {10.3847/1538-4365/ac00b3},
journal = {The Astrophysical Journal. Supplement Series},
number = 2,
volume = 255,
place = {United States},
year = {Tue Jul 27 00:00:00 EDT 2021},
month = {Tue Jul 27 00:00:00 EDT 2021}
}

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SciPy 1.0: fundamental algorithms for scientific computing in Python
journal, February 2020


The Blanco Cosmology Survey: data Acquisition, Processing, Calibration, Quality Diagnostics, and data Release
journal, September 2012


scarlet: Source separation in multi-band images by Constrained Matrix Factorization
journal, July 2018


The Difference Imaging Pipeline for the Transient Search in the dark Energy Survey
journal, November 2015


The Two Micron All Sky Survey (2MASS)
journal, February 2006

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New Grids of Pure-hydrogen White Dwarf NLTE Model Atmospheres and the HST/STIS Flux Calibration
journal, June 2020

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Data Lab—A community science platform
journal, October 2020


HUBBLE SPACE TELESCOPE CALSPEC FLUX STANDARDS: SIRIUS (AND VEGA)
journal, April 2014


Preparing Red‐Green‐Blue Images from CCD Data
journal, February 2004

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Improving LSST Photometric Calibration with Gaia Data
journal, December 2014

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GALEX absolute calibration and extinction coefficients based on white dwarfs
journal, September 2019

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Gaia Data Release 1 : Summary of the astrometric, photometric, and survey properties
journal, November 2016


Comparing Dark Energy Survey and HST –CLASH observations of the galaxy cluster RXC J2248.7−4431: implications for stellar mass versus dark matter
journal, August 2016

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Dark Energy Survey Year 1 Results: Detection of Intracluster Light at Redshift ∼ 0.25
journal, April 2019


Forward Global Photometric Calibration of the Dark Energy Survey
journal, December 2017


healpy: equal area pixelization and spherical harmonics transforms for data on the sphere in Python
journal, March 2019

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The Seventh data Release of the Sloan Digital sky Survey
journal, May 2009

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A scheme to deal accurately and efficiently with complex angular masks in galaxy surveys
journal, March 2004


Measuring Reddening with Sloan Digital sky Survey Stellar Spectra and Recalibrating sfd
journal, August 2011


Spectroscopic analysis of DA white dwarfs with 3D model atmospheres
journal, November 2013


Mosaic3: a red-sensitive upgrade for the prime focus camera at the Mayall 4m telescope
conference, August 2016

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Matplotlib: A 2D Graphics Environment
journal, January 2007


Absolute Spectral Energy Distributions for White Dwarfs
journal, February 1974

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Noise from undetected sources in Dark Energy Survey images
journal, July 2020

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White-dwarf-based evaluation of the GALEX absolute calibration
journal, January 2014

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First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters
journal, February 2019


Toward a Network of Faint da White Dwarfs as High-Precision Spectrophotometric Standards
journal, May 2016


The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory
journal, December 2017

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