Quasar Environments in the Sloan Digital Sky Survey

Details Quasar Environments in the Sloan Digital Sky Survey Quasar Environments in the Sloan Digital Sky Survey

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.7204h&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #72.04; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

We investigate the environments of low-redshift quasars using data from the Sloan Digital Sky Survey (SDSS), Data Release 5. A sample of about 2900 quasars with z < 0.2 will be compiled and cross correlated with the galaxies within a radius of 500 kpc. We will quantify the galaxy environments of the quasars in the sample by calculating the quasar-galaxy spatial covariance amplitude for each field. This will count galaxies brighter than a certain magnitude limit and within a certain volume of the quasar in order to classify the richness of the quasar environment. We will then compare the quasar fields with fields that contain no quasars to determine the relationship of a quasar with its environment. We will also be able to make correlations between the quasar environments and intrinsic properties of the quasar, for example radio loudness, luminosity, and black hole masses of the quasars.

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