Dynamics of Dark Matter Cusps
| dc.creator | Merritt, David | |
| dc.creator | Milosavljevic, Milos | |
| dc.date | 2002-05-09 | |
| dc.date.accessioned | 2026-07-25T18:38:22Z | |
| dc.description | Formation and disruption of dark-matter cusps are reviewed. Accumulation of baryons at the center of a halo can displace the dark matter, converting singular density cusps into low-density cores. The displaced mass can be of order 10 M_b with M_b the mass of the infalling population. If M_b is identified with the masses of the black holes currently observed at the centers of bright galaxies, predicted core radii are ~a few hundred pc. Other mechanisms, such as early mass outflow, may explain the large dark-matter cores in dwarf and low-surface-brightness galaxies. Predictions of dark matter annihilation radiation from the center of the Milky Way galaxy are shown to be strongly dependent on the galaxy's merger history. | |
| dc.description | 11 pages, 5 postscript figures. To appear in DARK 2002: 4th International Heidelberg Conference on Dark Matter in Astro and Particle Physics, 4-9 Feb 2002, Cape Town, South Africa, H.V. Klapdor-Kleingrothaus, R. Viollier (eds.) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0205140 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0205140 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/57155 | |
| dc.subject | Astrophysics | |
| dc.title | Dynamics of Dark Matter Cusps | |
| dc.type | text |