Early-type galaxies in the SDSS. I. The sample

Details Early-type galaxies in the SDSS. I. The sample Early-type galaxies in the SDSS. I. The sample

2003-01-30

arxiv.org/abs/astro-ph/0301631v1

Astron.J.125:1817,2003

Astronomy and Astrophysics

Astrophysics

63 pages, 21 figures. Accepted by AJ (scheduled for April 2003). This paper is part I of a revised version of astro-ph/0110344

Scientific paper

10.1086/367776

A sample of nearly 9000 early-type galaxies, in the redshift range 0.01 < z < 0.3, was selected from the Sloan Digital Sky Survey using morphological and spectral criteria. This paper describes how the sample was selected, presents examples of images and seeing corrected fits to the observed surface brightness profiles, describes our method for estimating K-corrections, and shows that the SDSS spectra are of sufficiently high quality to measure velocity dispersions accurately. It also provides catalogs of the measured photometric and spectroscopic parameters. In related papers, these data are used to study how early-type galaxy observables, including luminosity, effective radius, surface brightness, color, and velocity dispersion, are correlated with one another.

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