• Corpus ID: 55538998

The Formation History of the Ultra-Faint Dwarf Galaxies

@article{Brown2011TheFH,
  title={The Formation History of the Ultra-Faint Dwarf Galaxies},
  author={Thomas M. Brown and Jason Tumlinson and Marla C. Geha and Evan N. Kirby and Don A. VandenBerg and Jason S. Kalirai and Joshua D. Simon and Roberto J. Avila and Ricardo R. Mu{\~n}oz and Puragra Guhathakurta and Alvio Renzini and Henry C. Ferguson and Luis C. Vargas and Mario Gennaro},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  year={2011}
}
We present early results from a Hubble Space Telescope survey of the ultra-faint dwarf galaxies. These Milky Way satellites were discovered in the Sloan Digital Sky Survey, and appear to be an extension of the classical dwarf spheroidals to low luminosities, offering a new front in the efforts to understand the missing satellite problem. Because they are the least luminous, most dark matter dominated, and least chemically evolved galaxies known, the ultra-faint dwarfs are the best candidate… 

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