Backwards galaxy formation with only a few parameters
| dc.creator | Ferreras, I. | |
| dc.creator | Silk, J. | |
| dc.date | 2001-07-27 | |
| dc.date.accessioned | 2026-07-25T11:35:17Z | |
| dc.description | We present a simple phenomenological model of star formation in galaxies that describes the process with a set of a few parameters. The star formation efficiency and the fraction of gas and metals ejected in outflows are assumed to be the main drivers of star formation. The Tully-Fisher and the Faber-Jackson relations in different passbands are used as constraints in the analysis of disk and elliptical galaxies, respectively. We find that a steep correlation between efficiency and maximum rotation velocity is needed in disk systems, whereas elliptical galaxies can be explained by a high star formation efficiency, uncorrelated with the central velocity dispersion. Gas outflows are not important in disks, whereas a correlation of outflows with galaxy mass must be invoked in early-type galaxies to account for the observed colors. | |
| dc.description | 10 pages, proceedings of "Chemical Enrichment of the ICM and IGM", Vulcano, Italy, May 2001 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0107524 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0107524 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/3981 | |
| dc.subject | Astrophysics | |
| dc.title | Backwards galaxy formation with only a few parameters | |
| dc.type | text |