Systematics of the Ultraviolet Rising Flux in a GALEX/SDSS Sample of Early-type Galaxies

We present ultraviolet photometry for a sample of morphologically early-type galaxies selected by matching the Sloan Digital Sky Survey Data Release 1 with Dept. of Physics and Astronomy, UCLA, Los Angeles, CA 90095-1547 Max-Planck Institut für Astrophysik, D-85748 Garching, Germany Department of Physics and Astronomy, The Johns Hopkins University, Homewood Campus, Baltimore, MD 21218 California Institute of Technology, MC 405-47, 1200 East California Boulevard, Pasadena, CA 91125 Center for Astrophysical Sciences, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218 Center for Space Astrophysics, Yonsei University, Seoul 120-749, Korea Laboratoire d’Astrophysique de Marseille, BP 8, Traverse du Siphon, 13376 Marseille Cedex 12, France Space Sciences Laboratory, University of California at Berkeley, 601 Campbell Hall, Berkeley, CA 94720 Observatories of the Carnegie Institution of Washington, 813 Santa Barbara St., Pasadena, CA 91101 NASA/IPAC Extragalactic Database, California Institute of Technology, Pasadena, CA Laboratory for Astronomy and Solar Physics, NASA Goddard Space Flight Center, Greenbelt, MD 20771 Institut d’Astrophysique de Paris, CNRS, 98 bis boulevard Arago, F-75014 Paris, France Centro de Astrofisica da Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portuga Department of Physics, University of Oxford, Oxford OX1 3RH, UK