GALEX observations of the sloan digital sky survey: A Comparison

Mark Seibert, Tamás Budavári, Jaehyon Rhee, Soo Chang Rey, David Schiminovich, Samir Salim, D. Christopher Martin, Alex S. Szalay, Karl Forster, R. Michael Rich, T. Barlow, L. Bianchi, Y. I. Byun, J. Donas, P. G. Friedman, T. M. Heckman, P. Jelinsky, Y. W. Lee, B. F. Madore, R. MalinaB. Milliard, P. Morrissey, S. Neff, O. Siegmund, T. Small, B. Welsh, T. K. Wyder

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


We have matched 358,046 objects in 143 deg2 of overlap between the Galaxy Evolution Explorer (GALEX) and the Sloan Digital Sky Survey (SDSS). This Letter provides matching statistics at Medium Imaging Survey and All-sky Imaging Survey depths for SDSS-classified stars and galaxies as well as spectroscopic star, galaxy, and QSO subsamples. Distributions of magnitudes, redshifts, and colors are provided. Near-ultraviolet (NUV)-based color-color diagrams reveal (1) the segregation of main-sequence, horizontal-branch, subdwarf, white dwarf, M dwarf, and M dwarf-white dwarf binary stellar populations, (2) a bimodal distribution of galaxies, and (3) the higher signal quality of the GALEX NUV compared to the SDSS u band.

Original languageEnglish
Pages (from-to)L23-L26
JournalAstrophysical Journal
Issue number1 II
Publication statusPublished - 2005 Jan 20

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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