There Is No Void Problem

Details There Is No Void Problem There Is No Void Problem

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..421...95t&link_type=abstract

Galaxies in Isolation: Exploring Nature Versus Nurture, proceedings of a conference held 12 to 15 May 2009 in Granada, Spain. Ed

Astronomy and Astrophysics

Astronomy

Scientific paper

I demonstrate that there is no conflict between the observed distribution of faint galaxies in voids and the predictions of CDM. Although there is an abundance of low-mass halos in voids, galaxy bias dictates that these halos do not contain dwarf galaxies. To calibrate my model of galaxy bias, I constrain the galaxy-halo connection to match the mean properties of the overall galaxy distribution. The only assumption is then that the galaxy-halo connection is independent of environment. With this simple assumption, the distribution of voids and void galaxies matches all available data.

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