TY - JOUR
T1 - Galex-SDSS catalogs for statistical studies
AU - Budavri, Tams
AU - Heinis, Sébastien
AU - Szalay, Alexander S.
AU - Nieto-Santisteban, María
AU - Gupchup, Jayant
AU - Shiao, Bernie
AU - Smith, Myron
AU - Chang, Ruixiang
AU - Kauffmann, Guinevere
AU - Morrissey, Patrick
AU - Schiminovich, David
AU - Milliard, Bruno
AU - Wyder, Ted K.
AU - Martin, D. Christopher
AU - Barlow, Tom A.
AU - Seibert, Mark
AU - Forster, Karl
AU - Bianchi, Luciana
AU - Donas, Jose
AU - Friedman, Peter G.
AU - Heckman, Timothy M.
AU - Lee, Young Wook
AU - Madore, Barry F.
AU - Neff, Susan G.
AU - Rich, R. Michael
AU - Welsh, Barry Y.
PY - 2009
Y1 - 2009
N2 - We present a detailed study of the Galaxy Evolution Explorer's (GALEX) photometric catalogs with special focus on the statistical properties of the All-sky and Medium Imaging Surveys. We introduce the concept of primaries to resolve the issue of multiple detections and follow a geometric approach to define clean catalogs with well understood selection functions. We cross-identify the GALEX sources (GR2+3) with Sloan Digital Sky Survey (SDSS; DR6) observations, which indirectly provides an invaluable insight into the astrometric model of the UV sources and allows us to revise the band merging strategy. We derive the formal description of the GALEX footprints as well as their intersections with the SDSS coverage along with analytic calculations of their areal coverage. The crossmatch catalogs are made available for the public. We conclude by illustrating the implementation of typical selection criteria in SQL for catalog subsets geared toward statistical analyses, e.g., correlation and luminosity function studies.
AB - We present a detailed study of the Galaxy Evolution Explorer's (GALEX) photometric catalogs with special focus on the statistical properties of the All-sky and Medium Imaging Surveys. We introduce the concept of primaries to resolve the issue of multiple detections and follow a geometric approach to define clean catalogs with well understood selection functions. We cross-identify the GALEX sources (GR2+3) with Sloan Digital Sky Survey (SDSS; DR6) observations, which indirectly provides an invaluable insight into the astrometric model of the UV sources and allows us to revise the band merging strategy. We derive the formal description of the GALEX footprints as well as their intersections with the SDSS coverage along with analytic calculations of their areal coverage. The crossmatch catalogs are made available for the public. We conclude by illustrating the implementation of typical selection criteria in SQL for catalog subsets geared toward statistical analyses, e.g., correlation and luminosity function studies.
UR - http://www.scopus.com/inward/record.url?scp=72149085365&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=72149085365&partnerID=8YFLogxK
U2 - 10.1088/0004-637X/694/2/1281
DO - 10.1088/0004-637X/694/2/1281
M3 - Article
AN - SCOPUS:72149085365
VL - 694
SP - 1281
EP - 1292
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
ER -