Abstract
view Abstract Citations (8) References (20) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Black Hole Models for the Dark Matter in Draco and Ursa Minor Strobel, Nicolas V. ; Lake, George Abstract The stellar velocity dispersions of Draco and Ursa Minor have been used to infer large dark matter halos with central mass densities that are two orders of magnitude larger than found in brighter galaxies. We offer a different dark matter model. We fit the star count profiles using massive central black holes (1-2 x 10^7^ M_sun_) and investigate the agreement between this model and the latest velocity data. Such black holes produce the large observed velocity dispersions and create a density and distinctive velocity cusp close to the center. Star counts reaching the main sequence will lead to more accurate centering of the isopleths and may reveal a more prominent cusp. Publication: The Astrophysical Journal Pub Date: April 1994 DOI: 10.1086/187280 Bibcode: 1994ApJ...424L..83S Keywords: Black Holes (Astronomy); Cusps (Mathematics); Dark Matter; Halos; Milky Way Galaxy; Nomographs; Velocity; Ellipticity; Globular Clusters; Space Density; Astrophysics; COSMOLOGY: DARK MATTER; GALAXIES: LOCAL GROUP full text sources ADS | data products SIMBAD (2) NED (2)
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