Finding Clusters of Galaxies in the Sloan Digital Sky Survey using Voronoi Tessellation

Details Finding Clusters of Galaxies in the Sloan Digital Sky Survey using Voronoi Tessellation Finding Clusters of Galaxies in the Sloan Digital Sky Survey using Voronoi Tessellation

1999-12-15

arxiv.org/abs/astro-ph/9912302v1

Astronomy and Astrophysics

Astrophysics

2 pages, 1 figure included to appear in the proceedings "Clustering at High Redshift", Les Rencontres Internationales de l'IGR

Scientific paper

The Sloan Digital Sky Survey has obtained 450 square degrees of photometric
scan data, in five bands (u',g',r',i',z'), which we use to identify clusters of
galaxies. We illustrate how we do star-galaxy separation, and present a simple
and elegant method of detecting overdensities in the galaxy distribution, using
the Voronoi Tessellation.

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