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Title: The DECam Local Volume Exploration Survey: Overview and First Data Release

Abstract

The DECam Local Volume Exploration survey (DELVE) is a 126-night survey program on the 4 m Blanco Telescope at the Cerro Tololo Inter-American Observatory in Chile. DELVE seeks to understand the characteristics of faint satellite galaxies and other resolved stellar substructures over a range of environments in the Local Volume. DELVE will combine new DECam observations with archival DECam data to cover ~15,000 deg2 of high Galactic latitude (|b| > 10°) southern sky to a 5σ depth of g, r, i, z ~ 23.5 mag. In addition, DELVE will cover a region of ~2200 deg2 around the Magellanic Clouds to a depth of g, r, i ~ 24.5 mag and an area of ~135 deg2 around four Magellanic analogs to a depth of g, i ~ 25.5 mag. Here, we present an overview of the DELVE program and progress to date. We also summarize the first DELVE public data release (DELVE DR1), which provides point-source and automatic aperture photometry for ~520 million astronomical sources covering ~5000 deg2 of the southern sky to a 5σ point-source depth of g = 24.3 mag, r = 23.9 mag, i = 23.3 mag, and z = 22.8 mag. DELVE DR1 is publicly available viamore » the NOIRLab Astro Data Lab science platform.« less

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
DELVE Collaboration; Astro Data Lab
OSTI Identifier:
1818496
Alternate Identifier(s):
OSTI ID: 1822398
Report Number(s):
FERMILAB-PUB-21-075-AE-LDRD; arXiv:2103.07476
Journal ID: ISSN 0067-0049; Fermi Cycle 9 No. 91201; DE-AC02-07CH11359; L2019-011; TRN: US2213975
Grant/Contract Number:  
AC02-76SF00515; AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Supplement Series
Additional Journal Information:
Journal Volume: 256; Journal Issue: 1; Journal ID: ISSN 0067-0049
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; dwarf galaxies; Magellanic clouds; local group

Citation Formats

Drlica-Wagner, A., Carlin, J. L., Nidever, D. L., Ferguson, P. S., Kuropatkin, N., Adamów, M., Cerny, W., Choi, Y., Esteves, J. H., Martínez-Vázquez, C. E., Mau, S., Miller, A. E., Mutlu-Pakdil, B., Neilsen, E. H., Olsen, K. G., Pace, A. B., Riley, A. H., Sakowska, J. D., Sand, D. J., Santana-Silva, L., Tollerud, E. J., Tucker, D. L., Vivas, A. K., Zaborowski, E., Zenteno, A., Abbott, T. C., Allam, S., Bechtol, K., Bell, C. M., Bell, E. F., Bilaji, P., Bom, C. R., Carballo-Bello, J. A., Crnojević, D., Cioni, M.-R. L., Diaz-Ocampo, A., de Boer, T. L., Erkal, D., Gruendl, R. A., Hernandez-Lang, D., Hughes, A. K., James, D. J., Johnson, L. C., Li, T. S., Mao, Y. -Y., Martínez-Delgado, D., Massana, P., McNanna, M., Morgan, R., Nadler, E. O., Noël, N. D., Palmese, A., Peter, A. G., Rykoff, E. S., Sánchez, J., Shipp, N., Simon, J. D., Smercina, A., Soares-Santos, M., Stringfellow, G. S., Tavangar, K., van der Marel, R. P., Walker, A. R., Wechsler, R. H., Wu, J. F., Yanny, B., Fitzpatrick, M., Huang, L., Jacques, A., Nikutta, R., and Scott, A. The DECam Local Volume Exploration Survey: Overview and First Data Release. United States: N. p., 2021. Web. doi:10.3847/1538-4365/ac079d.
Drlica-Wagner, A., Carlin, J. L., Nidever, D. L., Ferguson, P. S., Kuropatkin, N., Adamów, M., Cerny, W., Choi, Y., Esteves, J. H., Martínez-Vázquez, C. E., Mau, S., Miller, A. E., Mutlu-Pakdil, B., Neilsen, E. H., Olsen, K. G., Pace, A. B., Riley, A. H., Sakowska, J. D., Sand, D. J., Santana-Silva, L., Tollerud, E. J., Tucker, D. L., Vivas, A. K., Zaborowski, E., Zenteno, A., Abbott, T. C., Allam, S., Bechtol, K., Bell, C. M., Bell, E. F., Bilaji, P., Bom, C. R., Carballo-Bello, J. A., Crnojević, D., Cioni, M.-R. L., Diaz-Ocampo, A., de Boer, T. L., Erkal, D., Gruendl, R. A., Hernandez-Lang, D., Hughes, A. K., James, D. J., Johnson, L. C., Li, T. S., Mao, Y. -Y., Martínez-Delgado, D., Massana, P., McNanna, M., Morgan, R., Nadler, E. O., Noël, N. D., Palmese, A., Peter, A. G., Rykoff, E. S., Sánchez, J., Shipp, N., Simon, J. D., Smercina, A., Soares-Santos, M., Stringfellow, G. S., Tavangar, K., van der Marel, R. P., Walker, A. R., Wechsler, R. H., Wu, J. F., Yanny, B., Fitzpatrick, M., Huang, L., Jacques, A., Nikutta, R., & Scott, A. The DECam Local Volume Exploration Survey: Overview and First Data Release. United States. https://doi.org/10.3847/1538-4365/ac079d
Drlica-Wagner, A., Carlin, J. L., Nidever, D. L., Ferguson, P. S., Kuropatkin, N., Adamów, M., Cerny, W., Choi, Y., Esteves, J. H., Martínez-Vázquez, C. E., Mau, S., Miller, A. E., Mutlu-Pakdil, B., Neilsen, E. H., Olsen, K. G., Pace, A. B., Riley, A. H., Sakowska, J. D., Sand, D. J., Santana-Silva, L., Tollerud, E. J., Tucker, D. L., Vivas, A. K., Zaborowski, E., Zenteno, A., Abbott, T. C., Allam, S., Bechtol, K., Bell, C. M., Bell, E. F., Bilaji, P., Bom, C. R., Carballo-Bello, J. A., Crnojević, D., Cioni, M.-R. L., Diaz-Ocampo, A., de Boer, T. L., Erkal, D., Gruendl, R. A., Hernandez-Lang, D., Hughes, A. K., James, D. J., Johnson, L. C., Li, T. S., Mao, Y. -Y., Martínez-Delgado, D., Massana, P., McNanna, M., Morgan, R., Nadler, E. O., Noël, N. D., Palmese, A., Peter, A. G., Rykoff, E. S., Sánchez, J., Shipp, N., Simon, J. D., Smercina, A., Soares-Santos, M., Stringfellow, G. S., Tavangar, K., van der Marel, R. P., Walker, A. R., Wechsler, R. H., Wu, J. F., Yanny, B., Fitzpatrick, M., Huang, L., Jacques, A., Nikutta, R., and Scott, A. Mon . "The DECam Local Volume Exploration Survey: Overview and First Data Release". United States. https://doi.org/10.3847/1538-4365/ac079d. https://www.osti.gov/servlets/purl/1818496.
@article{osti_1818496,
title = {The DECam Local Volume Exploration Survey: Overview and First Data Release},
author = {Drlica-Wagner, A. and Carlin, J. L. and Nidever, D. L. and Ferguson, P. S. and Kuropatkin, N. and Adamów, M. and Cerny, W. and Choi, Y. and Esteves, J. H. and Martínez-Vázquez, C. E. and Mau, S. and Miller, A. E. and Mutlu-Pakdil, B. and Neilsen, E. H. and Olsen, K. G. and Pace, A. B. and Riley, A. H. and Sakowska, J. D. and Sand, D. J. and Santana-Silva, L. and Tollerud, E. J. and Tucker, D. L. and Vivas, A. K. and Zaborowski, E. and Zenteno, A. and Abbott, T. C. and Allam, S. and Bechtol, K. and Bell, C. M. and Bell, E. F. and Bilaji, P. and Bom, C. R. and Carballo-Bello, J. A. and Crnojević, D. and Cioni, M.-R. L. and Diaz-Ocampo, A. and de Boer, T. L. and Erkal, D. and Gruendl, R. A. and Hernandez-Lang, D. and Hughes, A. K. and James, D. J. and Johnson, L. C. and Li, T. S. and Mao, Y. -Y. and Martínez-Delgado, D. and Massana, P. and McNanna, M. and Morgan, R. and Nadler, E. O. and Noël, N. D. and Palmese, A. and Peter, A. G. and Rykoff, E. S. and Sánchez, J. and Shipp, N. and Simon, J. D. and Smercina, A. and Soares-Santos, M. and Stringfellow, G. S. and Tavangar, K. and van der Marel, R. P. and Walker, A. R. and Wechsler, R. H. and Wu, J. F. and Yanny, B. and Fitzpatrick, M. and Huang, L. and Jacques, A. and Nikutta, R. and Scott, A.},
abstractNote = {The DECam Local Volume Exploration survey (DELVE) is a 126-night survey program on the 4 m Blanco Telescope at the Cerro Tololo Inter-American Observatory in Chile. DELVE seeks to understand the characteristics of faint satellite galaxies and other resolved stellar substructures over a range of environments in the Local Volume. DELVE will combine new DECam observations with archival DECam data to cover ~15,000 deg2 of high Galactic latitude (|b| > 10°) southern sky to a 5σ depth of g, r, i, z ~ 23.5 mag. In addition, DELVE will cover a region of ~2200 deg2 around the Magellanic Clouds to a depth of g, r, i ~ 24.5 mag and an area of ~135 deg2 around four Magellanic analogs to a depth of g, i ~ 25.5 mag. Here, we present an overview of the DELVE program and progress to date. We also summarize the first DELVE public data release (DELVE DR1), which provides point-source and automatic aperture photometry for ~520 million astronomical sources covering ~5000 deg2 of the southern sky to a 5σ point-source depth of g = 24.3 mag, r = 23.9 mag, i = 23.3 mag, and z = 22.8 mag. DELVE DR1 is publicly available via the NOIRLab Astro Data Lab science platform.},
doi = {10.3847/1538-4365/ac079d},
journal = {The Astrophysical Journal. Supplement Series},
number = 1,
volume = 256,
place = {United States},
year = {Mon Aug 16 00:00:00 EDT 2021},
month = {Mon Aug 16 00:00:00 EDT 2021}
}

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Eight Ultra-Faint Galaxy Candidates Discovered in year two of the dark Energy Survey
journal, November 2015


The SAGA Survey. I. Satellite Galaxy Populations around Eight Milky Way Analogs
journal, September 2017

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Constraints on 3.55 keV line emission from stacked observations of dwarf spheroidal galaxies
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The WaZP galaxy cluster sample of the dark energy survey year 1
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Dark Energy Survey Year 1 Results: The Photometric Data Set for Cosmology
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Gravitational detection of a low-mass dark satellite galaxy at cosmological distance
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Discovery of a new Faint Dwarf Galaxy Associated with ngc 253
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The Extragalactic Distance Database: Color-Magnitude Diagrams
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Discovering New Strong Gravitational Lenses in the DESI Legacy Imaging Surveys
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The Field of Streams: Sagittarius and Its Siblings
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The Dark Energy Survey: Data Release 1
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At a Crossroads: Stellar Streams in the South Galactic Cap
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The Shape of the Inner Milky way halo from Observations of the pal 5 and gd–1 Stellar Streams
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Finding high-redshift strong lenses in DES using convolutional neural networks
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The Second Data Release of the Survey of the MAgellanic Stellar History (SMASH)
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Reionization and the Abundance of Galactic Satellites
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Stellar Feedback in Dwarf Galaxy Formation
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Two Ultra-faint Milky Way Stellar Systems Discovered in Early Data from the DECam Local Volume Exploration Survey
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Photometric Characterization of the Dark Energy Camera
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ELVIS: Exploring the Local Volume in Simulations
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The Observed Properties of Dwarf Galaxies in and Around the Local Group
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Dark Energy Survey Year 1 results: weak lensing mass calibration of redMaPPer galaxy clusters
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Stellar Population and Structural Properties of Dwarf Galaxies and Young Stellar Systems in the M81 Group
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The DES Bright Arcs Survey: Hundreds of Candidate Strongly Lensed Galaxy Systems from the Dark Energy Survey Science Verification and Year 1 Observations
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Dwarf Galaxies and Globular Clusters in High Velocity Hydrogen Streams
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A joint SZ–X-ray–optical analysis of the dynamical state of 288 massive galaxy clusters
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The ATLAS All-Sky Stellar Reference Catalog
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EDGE: the mass–metallicity relation as a critical test of galaxy formation physics
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Observability of γ rays from dark matter neutralino annihilations in the Milky Way halo
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The Discovery of Seven Extremely low Surface Brightness Galaxies in the Field of the Nearby Spiral Galaxy m101
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A Tidally Disrupting Dwarf Galaxy in the halo of ngc 253
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Be it therefore resolved: cosmological simulations of dwarf galaxies with 30 solar mass resolution
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Sweating the small stuff: simulating dwarf galaxies, ultra-faint dwarf galaxies, and their own tiny satellites
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Absolute Spectral Energy Distributions for White Dwarfs
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Variations in the Width, Density, and Direction of the Palomar 5 Tidal Tails
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A giant stream of metal-rich stars in the halo of the galaxy M31
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The SAGA Survey. II. Building a Statistical Sample of Satellite Systems around Milky Way–like Galaxies
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Discovery of a cold stellar stream in the ATLAS DR1 data
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Great Circle Tidal Streams: Evidence for a Nearly Spherical Massive Dark Halo around the Milky Way
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Dynamical friction in a Fuzzy Dark Matter universe
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