The Cluster and Large Scale Environments of Quasars at z<0.9

Details The Cluster and Large Scale Environments of Quasars at z<0.9 The Cluster and Large Scale Environments of Quasars at z<0.9

2012-01-27

arxiv.org/abs/1201.5746v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

257 pages, PhD Thesis

Scientific paper

In this thesis, I present an investigation into the environments of quasars with respect to galaxy clusters, and environment evolution with redshift and luminosity. The orientation of the quasar with respect to the major axis of the closest cluster was calculated, introducing new information to previous work. The aim of this work was i.) to study the large scale environment over a large redshift range, ii.) to study the evolution as well as any change in environment with quasar luminosity and redshift, and iii.) to study the orientation of a quasar with respect to a galaxy cluster. There is a deficit of quasars lying close to cluster centres for 0.4

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