The fraction of early-type galaxies in low redshift groups and clusters of galaxies

Details The fraction of early-type galaxies in low redshift groups and clusters of galaxies The fraction of early-type galaxies in low redshift groups and clusters of galaxies

2011-10-28

arxiv.org/abs/1110.6320v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 page, 5 figures, submitted to MNRAS

Scientific paper

We examine the fraction of early-type (and spiral) galaxies found in groups and clusters of galaxies as a function of dark matter halo mass. We use morphological classifications from the Galaxy Zoo project matched to halo masses from both the C4 cluster catalogue and the Yang et al (2007) group catalogue. We find that the fraction of early-type (or spiral) galaxies remains constant (changing by less than 10%) over three orders of magnitude in halo mass (13

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