학술논문

The DECam Local Volume Exploration Survey Data Release 2
Document Type
Working Paper
Author
Drlica-Wagner, A.Ferguson, P. S.Adamów, M.Aguena, M.Andrade-Oliveira, F.Bacon, D.Bechtol, K.Bell, E. F.Bertin, E.Bilaji, P.Bocquet, S.Bom, C. R.Brooks, D.Burke, D. L.Carballo-Bello, J. A.Carlin, J. L.Rosell, A. CarneroKind, M. CarrascoCarretero, J.Castander, F. J.Cerny, W.Chang, C.Choi, Y.Conselice, C.Costanzi, M.Crnojević, D.da Costa, L. N.De Vicente, J.Desai, S.Esteves, J.Everett, S.Ferrero, I.Fitzpatrick, M.Flaugher, B.Friedel, D.Frieman, J.García-Bellido, J.Gatti, M.Gaztanaga, E.Gerdes, D. W.Gruen, D.Gruendl, R. A.Gschwend, J.Hartley, W. G.Hernandez-Lang, D.Hinton, S. R.Hollowood, D. L.Honscheid, K.Hughes, A. K.Jacques, A.James, D. J.Johnson, M. D.Kuehn, K.Kuropatkin, N.Lahav, O.Li, T. S.Lidman, C.Lin, H.March, M.Marshall, J. L.Martínez-Delgado, D.Martínez-Vázquez, C. E.Massana, P.Mau, S.McNanna, M.Melchior, P.Menanteau, F.Miller, A. E.Miquel, R.Mohr, J. J.Morgan, R.Mutlu-Pakdil, B.Muñoz, R. R.Neilsen, E. H.Nidever, D. L.Nikutta, R.Castellon, J. L. NiloNoël, N. E. D.Ogando, R. L. C.Olsen, K. A. G.Pace, A. B.Palmese, A.Paz-Chinchón, F.Pereira, M. E. S.Pieres, A.Malagón, A. A. PlazasPrat, J.Riley, A. H.Rodriguez-Monroy, M.Romer, A. K.Roodman, A.Sako, M.Sakowska, J. D.Sanchez, E.Sánchez, F. J.Sand, D. J.Santana-Silva, L.Santiago, B.Schubnell, M.Serrano, S.Sevilla-Noarbe, I.Simon, J. D.Smith, M.Soares-Santos, M.Stringfellow, G. S.Suchyta, E.Suson, D. J.Tan, C. Y.Tarle, G.Tavangar, K.Thomas, D.To, C.Tollerud, E. J.Troxel, M. A.Tucker, D. L.Varga, T. N.Vivas, A. K.Walker, A. R.Weller, J.Wilkinson, R. D.Wu, J. F.Yanny, B.Zaborowski, E.Zenteno, A.
Source
Subject
Astrophysics - Instrumentation and Methods for Astrophysics
Astrophysics - Cosmology and Nongalactic Astrophysics
Astrophysics - Astrophysics of Galaxies
Language
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 deg^2 of the high Galactic latitude (|b| > 10 deg) 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 5{\sigma} point-source depth of g=24.3, r=23.9, i=23.5, and z=22.8 mag. A region of ~17,000 deg^2 has been imaged in all four filters, providing four-band photometric measurements for ~618 million astronomical sources. DELVE DR2 covers more than four times the area of the previous DELVE data release and contains roughly five times as many astronomical objects. DELVE DR2 is publicly available via the NOIRLab Astro Data Lab science platform.
Comment: 23 pages, 10 figures, 5 tables; to be submitted to AAS Journals; public data release at https://datalab.noirlab.edu/delve/. arXiv admin note: substantial text overlap with arXiv:2103.07476