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The Distribution of Galaxies in Voids

Ulrich Lindner, Maret Einasto, Jaan Einasto, Wolfram Freudling, Klaus Fricke, Valentin Lipovetsky, Simon Pustilnik, Yuri Izotov, Gotthard Richter

Published 1996-04-12Version 1

We investigate the distribution of normal (faint) galaxies and blue compact galaxies (BCGs) in voids by analyzing their distribution as a function of distance from the void centers and by employing nearest neighbour statistics between objects of various subsamples. We find that galaxies in voids defined by brighter galaxies tend to be concentrated close to the walls of voids in a hierarchical manner, similar to the behavior of brighter galaxies. The behavior of BCGs is in this respect similar to the one found for normal dwarf galaxies. The median nearest neighbour distance of BCGs from normal galaxies is approximately 0.7 Mpc, which indicates that these galaxies are located in outlying parts of systems of galaxies defined by normal galaxies.

Comments: 13 Pages, A&A plain TeX with figures included, also available on request or at http://www.uni-sw.gwdg.de/~ulindner/preprints.html or anonymous ftp at ftp://eden.uni-sw.gwdg.de/incoming/ulindner/dgv.ps.gz
Journal: Astron.Astrophys.314:1-12,1996
Categories: astro-ph
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