Journal
ADVANCES IN ASTRONOMY
Volume 2010, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2010/285454
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Funding
- NSF [AST-0908193]
- Direct For Mathematical & Physical Scien [0908193] Funding Source: National Science Foundation
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The dwarf galaxy companions to the Milky Way are unique cosmological laboratories. With luminosities as low as 10(-7) LMW, they inhabit the lowest mass dark matter halos known to host stars and are presently the most direct tracers of the distribution, mass spectrum, and clustering scale of dark matter. Their resolved stellar populations also facilitate detailed studies of their history and mass content. To fully exploit this potential requires a well-defined census of virtually invisible galaxies to the faintest possible limits and to the largest possible distances. I review the past and present impacts of survey astronomy on the census of Milky Way dwarf galaxy companions and discuss the future of finding ultra-faint dwarf galaxies around the Milky Way and beyond in wide-field survey data.
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