Abstract
Gravity is nearly a universal constant in the cusp of an NFW galaxy halo. Inside this external field an isothermal gas sphere will collapse and trigger a starburst if above a critical central pressure. Thus formed spheroidal stellar systems have Sersic-profile and satisfy the Faber-Jackson relation. The process is consistent with observed starbursts. We also recover the MBH * relation, if the gas collapse is regulated or resisted by the feedback from radiation from the central BH.
| Original language | English |
|---|---|
| Pages (from-to) | 15-18 |
| Number of pages | 4 |
| Journal | Proceedings of the International Astronomical Union |
| Volume | 3 |
| Issue number | S245 |
| DOIs | |
| Publication status | Published - 1 Jul 2007 |
Keywords
- Black hole physics galaxies: formation galaxies: starburst galaxies: structure
