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Evolution of the Density Profiles of Dark Matter Haloes
Darren Reed, Fabio Governato, Licia Verde +5
We use numerical simulations in a Lambda CDM cosmology to model density profiles in a set of 16 dark matter haloes with resolutions of up to 7 million particles within the virial r…
Evolution of the Dark Matter Distribution at the Galactic Center
David Merritt
Annihilation radiation from neutralino dark matter at the Galactic center (GC) would be greatly enhanced if the dark matter were strongly clustered around the supermassive black ho…
Revised Rates of Stellar Disruption in Galactic Nuclei
Jianxiang Wang, David Merritt
We compute rates of tidal disruption of stars by supermassive black holes in galactic nuclei, using downwardly-revised black hole masses from the M-sigma relation. In galaxies with…
Chaotic Loss Cones, Black Hole Fueling and the M-Sigma Relation
David Merritt, M. Y. Poon
In classical loss cone theory, stars are supplied to a central black hole via gravitational scattering onto low angular momentum orbits. Higher feeding rates are possible if the gr…
Dark Matter Spikes and Indirect Detection
David Merritt
Annihilation radiation from supersymmetric particles at the Galactic center could be greatly enhanced if the dark matter density is peaked around the supermassive black hole. Argum…
Single and Binary Black Holes and their Influence on Nuclear Structure
David Merritt
Massive central objects affect both the structure and evolution of galactic nuclei. Adiabatic growth of black holes generates power-law central density profiles with logarithmic sl…