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The First Stars and Galaxies: Challenges for the Next Decade Participants
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Poster
Title: The Ultra-Faint Dwarfs as Fossils of the First Galaxies Author(s): Mia Bovill Abstract: We present the results from a new set of CDM simulations suggesting that a fraction of the recently discovered ultra-faint dwarf population consists of the fossil remnants of galaxies that formed the majority of their stars before reionization. Our new simulations allow us to map the distribution of fossil and non-fossils dwarfs in the Local group and compare the simulated maps to observations. We show good agreement between our simulations and observations of the ultra-faints in both their radial distribution within the Milky Way virial radius and their stellar properties. We also find some discrepancies with respect to the number of dwarfs in the regions outside the Milky Way virial radius.
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