Quasar environment in the context of large-scale structure at <p> z ~0.3 </p>

Details Quasar environment in the context of large-scale structure at <p> z ~0.3 </p> Quasar environment in the context of large-scale structure at <p> z ~0.3 </p>

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mnras.331..569s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 331, Issue 3, pp. 569-577.

Astronomy and Astrophysics

Astronomy

19

Methods: Miscellaneous, Galaxies: Clusters: General, Quasars: General, Large-Scale Structure Of Universe

Scientific paper

We look at quasar environment in the context of large-scale structure (LSS) - a new approach, giving a more informed interpretation of quasar-galaxy correlations. This paper presents our first results for a sample of z ~0.3 quasars. We use Voronoi tessellation applied in colour (B J -R ) slices for the detection of galaxy clusters and the minimal spanning tree (MST) to delineate the large-scale structure. This new cluster detection method allows us to find reliably galaxy clusters at z <0.3 from SuperCOSMOS measurements of UK Schmidt Telescope plates. By reconstructing the large-scale structure in a relatively narrow redshift band (0.2

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