Show simple item record

dc.contributor.authorDesai, Vandana, 1975-en_US
dc.date.accessioned2009-10-05T23:21:37Z
dc.date.available2009-10-05T23:21:37Z
dc.date.issued2004en_US
dc.identifier.otherb53183204en_US
dc.identifier.other58810911en_US
dc.identifier.otherThesis 54053en_US
dc.identifier.urihttp://hdl.handle.net/1773/5415
dc.descriptionThesis (Ph. D.)--University of Washington, 2004en_US
dc.description.abstractClusters of galaxies are the largest bound structures in the universe. As such, they represent an important tool for testing models of structure formation. In addition, because galaxies in clusters span a range of local environments and experience the full spectrum of galaxy evolution pathways, clusters are ideal targets for investigations of galaxy evolution. This dissertation utilizes observations of clusters to study both structure formation and galaxy evolution. In Chapter 1, we use Sloan Digital Sky Survey data of low redshift clusters to test the results of numerical simulations of structure growth in a ΛCDM universe. Considering that the simulations follow the non-linear process of structure formation over several orders of magnitude in mass, we found a remarkable agreement between theory and observation. In Chapters 2, 3, and 4 we present results from a Hubble Space Telescope survey of 10 high redshift (0.4 < z < 0.8) galaxy clusters from the ESO Distant Cluster Survey. These data, in conjunction with data on lower-redshift clusters, show that (1) the fraction of elliptical galaxies varies between 15% and 55% but shows no systematic trend with redshift; (2) the S0 fraction has systematically increased at the expense of the late-type fraction since z ∼ 0.8, strongly suggesting that late types have transformed into S0s within clusters; (3) the morphology-density relation is already in place at z≲0.8 ; and (4) most ellipticals in clusters were assembled at z≳3 , not in dissipationless mergers of galaxies containing old stellar populations at z < 1.en_US
dc.format.extentvii, 141 p.en_US
dc.language.isoen_USen_US
dc.rightsCopyright is held by the individual authors.en_US
dc.rights.urien_US
dc.subject.otherTheses--Astronomyen_US
dc.titleThe assembly of cluster galaxiesen_US
dc.typeThesisen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record