The Growth of Supermassive Black Holes and QSO Formation
| dc.creator | Umemura, Masayuki | |
| dc.date | 2003-04-10 | |
| dc.date.accessioned | 2026-07-25T18:57:57Z | |
| dc.description | A novel mechanism to build up a supermassive black hole (SMBH) is proposed. Here, relativistic radiation-hydrodynamic processes are considered from a galactic scale to a horizon scale. In the present scenario, the mass of a SMBH is predicted to be in proportion to the bulge mass, and it turns out that the SMBH-to-bulge mass ratio is basically determined by the nuclear energy conversion efficiency from hydrogen to helium, $ε=0.007$. The BH hierarchy is also addressed in relation to the BH formation in globular clusters. Futhermore, a new picture for QSO formation is proposed based on the present SMBH formation scenario. It is predicted that a host luminosity-dominant ``proto-QSO phase'' exists before the QSO phase, and the proto-QSO phase is preceded by an optically-thick ultraluminous infrared galaxy (ULIRG) phase. | |
| dc.description | 10 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0304189 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0304189 | |
| dc.identifier | Carnegie Observatories Astrophysics Series, Vol. 1: Coevolution of Black Holes and Galaxies, 2003, ed. L. C. Ho (Pasadena: Carnegie Observatories, http://www.ociw.edu/ociw/symposia/series/symposium1/proceedings.html) | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/60174 | |
| dc.subject | Astrophysics | |
| dc.title | The Growth of Supermassive Black Holes and QSO Formation | |
| dc.type | text |