Award Date

1-1-2004

Degree Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Physics

First Committee Member

George Rhee

Number of Pages

130

Abstract

We present a comparison of the photometric quantities of rich galaxy clusters to their X-ray metallicity (Z). The intra-cluster medium (ICM) is enriched with more metals than expected for a primordial gas. The most plausible source of the metals are the constituent galaxies, in particular, supernovae winds from those galaxies. In an effort to probe the Z variations, we studied photometric quantities of a sample of galaxy clusters. White (2000) and Horner (2001) present X-ray data for large samples of clusters, including their metallicity. We analyzed photometric data for a sample of 35 clusters chosen from their list. Here, we present luminosity functions for those clusters with a metallicity range of 0.00 to 0.42 Z⊙ . There is a possible decrease in r band characteristic magnitude ( M*r ), of the luminosity functions for the clusters, as their metallicity increases. This result favors the hypothesis of ICM enrichment due to supernovae winds.

Keywords

Clusters; Functions; Galaxy; Galaxy Clusters; Luminosity; Metallicities; Ray

Controlled Subject

Astronomy

File Format

pdf

File Size

4536.32 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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