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The Local Group as a cosmological probe: dwarf galaxies, stellar streams, and stellar halos
If you have a question about this talk, please contact Martin Haehnelt.
The salience of satellite dwarf galaxies for understanding galaxy formation in a cosmological context has been made all the more evident in the past decade with the discovery of numerous faint Local Group galaxies as well as stellar streams, the remnant of their accreted counterparts. These faint systems are not only important to understand the faint end of galaxy formation but also their distribution around their host can test the hierarchical formation induced by the favored cosmological paradigm. I will review our successful effort to mine the two most ambitious surveys of the surroundings of the Milky Way and Andromeda galaxies, Pan-STARRS1 and PAndAS, for numerous new dwarf galaxies and stellar structures.
This talk is part of the Institute of Astronomy Galaxies Discussion Group series.
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