Chris Brook (IAC, Tenerife)

Abundance Matching in the Local Volume
When Feb 02, 2017 from 02:30 PM to 03:30 PM
What
  • Colloquium
Where SH Lecture Hall
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I will explain Abundance Matching, a process that links the stellar or baryonic mass of galaxies to the mass of dark matter halos. I will highlight the importance of extending this relation to low mass galaxies, in relation to resolving the small scale problems of the cold dark matter paradigm, i.e. the "missing satellite", "too big to fail" and "cusp-core" problems. I will also highlight the difficulties in deriving the relation at low masses, including completeness limits of observations, small number statistics, and the effects of scatter in the relation. These difficulties will be improved by current surveys of larger local volumes that promise to be complete to relatively low stellar masses.