Notes on the Missing Satellites Problem

  title={Notes on the Missing Satellites Problem},
  author={James S Bullock},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  • J. Bullock
  • Published 23 September 2010
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
The Missing Satellites Problem (MSP) broadly refers to the overabundance of predicted Cold Dark Matter (CDM) subhalos compared to satellite galaxies known to exist in the Local Group. The most popular interpretation of the MSP is that the smallest dark matter halos in the universe are extremely inefficient at forming stars. The question from that standpoint is to identify the feedback source that makes small halos dark and to identify any obvious mass scale where the truncation in the… 
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