Star Formation in Dwarf Stellar Systems

Details Star Formation in Dwarf Stellar Systems Star Formation in Dwarf Stellar Systems

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..nws.b1002m&link_type=abstract

American Physical Soceity, Fifth Annual Meeting of the Northwest Section Meeting, May 30-31, 2003, Reed college, Portland, Orego

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In preferred cosmological pictures, massive galaxies form via the merger of dwarf systems, and so it is of great interest to examine the factors affecting the early evolution of and star formation within dwarf galaxies. Of especial interest is the ability of dwarf galaxies to prevent early cooling and contraction via star-formation feedback, and their ability to retain gas for subsequent generations of star formation. I shall present some of the work that our group is doing to study these issues, using both analytical approaches and numerical modeling. We find, in accordance with earlier work, that dwarf stellar systems face severe challenges, though we suggest means by which these may be overcome. Surviving systems have almost certainly been heavily modified since their formation. In addition, there may exist many "dark," starless systems within galactic haloes.

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