Observed properties of dark matter:dynamical studies of dSph galaxies

Gilmore, G. and Wilkinson, M. and Kleyna, Jan and Koch, Andreas and Evans, N. W. and Wyse, Rosemary F. G. and Grebel, E. K. (2007) Observed properties of dark matter:dynamical studies of dSph galaxies. Nuclear Physics B - Proceedings Supplements, 173. pp. 15-18. ISSN 0920-5632

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Abstract

The Milky Way satellite dwarf spheroidal (dSph) galaxies are the smallest dark matter dominated systems in the universe. We have underway dynamical studies of the dSph to quantify the shortest scale lengths on which Dark Matter is distributed, the range of Dark Matter central densities, and the density profile(s) of DM on small scales. Current results suggest some surprises: the central DM density profile is typically cored, not cusped; the central densities are typically 10–20GeV/cc; no galaxy is found with a dark mass halo less massive than ∼5.107M⊙. We are discovering many more dSphs, which we are analysing to test the generality of these results.

Item Type:
Journal Article
Journal or Publication Title:
Nuclear Physics B - Proceedings Supplements
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
83641
Deposited By:
Deposited On:
14 Dec 2016 16:22
Refereed?:
No
Published?:
Published
Last Modified:
22 Jul 2020 03:15