Search for dissertations about: "Christopher D. Impey"

Found 1 swedish dissertation containing the words Christopher D. Impey.

2. 1. The environment of active galactic nuclei : excess counts and the nature of their host clusters

   Author : Margrethe Wold; Christopher D. Impey; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astronomy; astronomi;

   Abstract : This thesis presents observations of the galaxy environment of active galactic nuclei on galaxy cluster scales. In the first part, we quantify the galaxy environment of a sample of 40 quasars, consisting of equal fractions of radio-loud and radio-quiet sources. The sample covers a narrow range in redshift, 0.5 < z < 0. READ MORE