Faint stars in the Ursa Minor dwarf spheroidal galaxy: implications for the low-mass stellar initial mass function at high redshift

  title={Faint stars in the Ursa Minor dwarf spheroidal galaxy: implications for the low-mass stellar initial mass function at high redshift},
  author={Rosemary F. G. Wyse and Gerard Gilmore and Mark Lee Houdashelt and Sofia Feltzing and Leslie Hebb and John S. Iii Gallagher and Tammy A. Smecker-Hane Johns Hopkins Univ. and University of St. Andrews and Oxford Univ. and Ioa and Cambridge Lund Observatory and University of Wisconsin and University of Southern California and Irvine},
  journal={New Astronomy},
The stellar initial mass function at high redshift is an important defining property of the first stellar systems to form and may also play a role in various dark matter problems. We here determine the faint stellar luminosity function in an apparently dark-matter-dominated external galaxy in which the stars formed at high redshift. The Ursa Minor dwarf spheroidal galaxy is a system with a particularly simple stellar population-all of the stars being old and metal-poor-similar to that of a… Expand
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The Low-Mass Initial Mass Function of Dwarf Galaxy Ursa Minor
  • 2011
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