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The Morphology-Density Relation in the Sloan Digital Sky Survey
Tomotsugu Goto, Chisato Yamauchi, Yutaka Fujita +5
We have studied the morphology-density relation and morphology--cluster-centric-radius relation using a volume limited sample (0.050.1, 20.5) of the Sloan Digital Sky…
Redshift-Distance Survey of Early-Type Galaxies: Spectroscopic Data
G. Wegner, M. Bernardi, C. N. A. Wilmer +5
We present central velocity dispersions and Mg line indices for an all-sky sample of 1178 elliptical and S0 galaxies, of which 984 had no previous measures. This sample…
SDSS J0903+5028: A New Gravitational Lens
David E. Johnston, Gordon T. Richards, Joshua A. Frieman +22
We report the discovery of a new gravitationally lensed quasar from the Sloan Digital Sky Survey, SDSS J090334.92+502819.2. This object was targeted for SDSS spectroscopy as a Lumi…
The Environment of AGNs in the Sloan Digital Sky Survey
Christopher J. Miller, Robert C. Nichol, Percy Gomez +2
We present the observed fraction of galaxies with an Active Galactic Nucleus (AGN) as a function of environment in the Early Data Release of the Sloan Digital Sky Survey (SDSS). Us…
Stellar and Dynamical Masses of Ellipticals in the Sloan Digital Sky Survey
N. Padmanabhan, U. Seljak, M. A. Strauss +9
We study the variation of the dark matter mass fraction of elliptical galaxies as a function of their luminosity, stellar mass, and size using a sample of 29,469 elliptical galaxie…
Star formation rate indicators in the Sloan Digital Sky Survey
A. M. Hopkins, C. J. Miller, R. C. Nichol +8
The Sloan Digital Sky Survey (SDSS) first data release provides a database of 106000 unique galaxies in the main galaxy sample with measured spectra. A sample of star-forming (SF)…