AAS 199th meeting, Washington, DC, January 2002
Session 100. Galaxy Clusters and Mergers
Display, Wednesday, January 9, 2002, 9:20am-6:30pm, Exhibit Hall

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[100.04] Composite luminosity function of SDSS Cut & Enhance galaxy cluster catalog.

T.G. Goto (Carnegie Mellon University/University of Tokyo), R. C. N. Nichol, C. M. Miller (Carnegie Mellon University), SDSS Collaboration

We constructed the composite luminosity function (LF) of cluster galaxies from the SDSS Cut & Enhance galaxy cluster catalog. Major advantages of using SDSS Cut & Enhance galaxy cluster catalog are following. 1. The sample is large. Our LFs consist of 185 clusters, while previous works are from dozens of clusters. 2. Cut & enhance cluster selection is uniform and not biased against special LFs. 3. Large area coverage of SDSS enables to subtract background locally. 4. CCD imaging data of SDSS enables us to use accurate photometry, color and morphological information on each galaxy.

We study the dependence of cluster luminosity function on galaxy morphology, radial distance from the center, surface galaxy density. We also compare the cluster luminosity function with the field galaxy luminosity function (Blanton et al. 2001). We discuss the environmental effect on galaxy formation and evolution.

T. G. acknowledges financial support from the Japan Society for the Promotion of Science (JSPS) through JSPS Research Fellowships for Young Scientists.

The Sloan Digital Sky Survey (SDSS) is a joint project of The University of Chicago, Fermilab, the Institute for Advanced Study, the Japan Participation Group, the Johns Hopkins University, the Max-Planck-Institute for Astronomy, New Mexico State University, Princeton University, the United States Naval Observatory, and the University of Washington. Apache Point Observatory, site of the SDSS telescopes, is operated by the Astrophysical Research Consortium (ARC). Funding for the project has been provided by the Alfred P. Sloan Foundation, the SDSS member institutions, the National Aeronautics and Space Administration, the National Science Foundation, the U.S.Department of Energy, Monbusho, and the Max Planck Society. The SDSS Web site is http://www.sdss.org/.

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The author(s) of this abstract have provided an email address for comments about the abstract: tomo@cmu.edu

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