Abstract
This review focuses on dark matter in the low-luminosity dwarf spheroidal galaxies that are satellites of our own Galaxy. Originally controversial, the large velocity dispersions in Draco and Ursa Minor are now incontestable and the dispersions of Carina, Sculptor, and Fornax have increased as the data have improved. Mass-to-light ratios from core fitting range from 5.7 for Fornax to 94 for Draco. These values are larger than those found for globular clusters and for most low-luminosity ellipticals, suggesting that all of the dwarf spheroidal satellites of our Galaxy contain dark matter. The presence of non-stellar dark matter in Draco, Ursa Minor, and Carina seems hard to avoid. The data are consistent with all the galaxies having dark halos with a central density of ~0.1 M⊙/pc−3.
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Pryor, C. (1992). Dark Matter in Dwarf Galaxies. In: Longo, G., Capaccioli, M., Busarello, G. (eds) Morphological and Physical Classification of Galaxies. Astrophysics and Space Science Library, vol 178. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2522-2_13
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