Single and Binary Black Holes and their Influence on Nuclear Structure
| dc.creator | Merritt, David | |
| dc.date | 2003-01-14 | |
| dc.date.accessioned | 2026-07-07T02:07:10Z | |
| dc.date.available | 2026-07-07T02:07:10Z | |
| dc.description | 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 slopes in the range from ~1.5 to ~2.5, in good agreement with the profiles observed in the nuclei of galaxies fainter than visual magnitude -20. However the shallow nuclear profiles of bright galaxies require a different explanation. Binary black holes are an inevitable result of galactic mergers, and the ejection of stars by a massive binary displaces a mass of order the binary's own mass, creating a core or shallow power-law cusp. This model is at least crudely consistent with core sizes in bright galaxies. Uncertainties remain about the effectiveness of stellar- and gas-dynamical processes at inducing coalescence of binary black holes, and uncoalesced binaries may be common in low-density nuclei. | |
| dc.description | 10 pages, 4 figures, uses emulateapj.sty, onecolfloat.sty. An abridged version of this article will appear in Carnegie Observatories Astrophysics Series, Vol. 1: "Coevolution of Black Holes and Galaxies," edited by L. C. Ho (Cambridge: Cambridge Univ. Press) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0301257 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0301257 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/5609 | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Single and Binary Black Holes and their Influence on Nuclear Structure | |
| dc.type | text |