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Colors of 2625 Quasars at 0<z<5 Measured in the Sloan Digital Sky Survey Photometric System
Gordon T. Richards, Xiaohui Fan, Donald P. Schneider +3
We present an empirical investigation of the colors of quasars in the Sloan Digital Sky Survey (SDSS) photometric system. The sample studied includes 2625 quasars with SDSS photome…
The Luminosity Function of Galaxies in SDSS Commissioning Data
SDSS Collaboration, M. R. Blanton
During commissioning observations, the Sloan Digital Sky Survey (SDSS) has produced one of the largest existing galaxy redshift samples selected from CCD images. Using 11,275 galax…
An XMM-Newton detection of the z=5.80 X-ray weak quasar SDSSp J104433.04-012502.2
W. N. Brandt, M. Guainazzi, S. Kaspi +5
We report on an XMM-Newton observation of the most distant known quasar, SDSSp J104433.04-012502.2, at z=5.80. We have detected this quasar with high significance in the rest-frame…
Optical and Infrared Colors of Stars Observed by 2MASS and SDSS
K. Finlator, Z. Ivezic, M. Strauss +4
We discuss optical and infrared photometric properties of stars matched in the Two Micron All Sky Survey (2MASS) and the Sloan Digital Sky Survey (SDSS) commissioning data for 50 d…
Gaussianity of Cosmic Velocity Fields and Linearity of the Velocity-Gravity Relation
Pawel Ciecielag, Michal Chodorowski, Marcin Kiraga +3
We present a numerical study of the relation between the cosmic peculiar velocity field and the gravitational acceleration field. We show that on mildly non-linear scales (4-10 Mpc…
Discovery of a Close Pair of z = 4.25 Quasars from the Sloan Digital Sky Survey
Donald P. Schneider, Xiaohui Fan, Michael A. Strauss +17
We report the discovery of a pair of z = 4.25 quasars with a separation of 33 arcseconds. The brighter of the two objects was identified as a high-redshift quasar candidate from Sl…