Halo Mergers, Galaxy Mergers, and Why Hubble Type Depends on Mass
| dc.creator | Maller, Ariyeh H. | |
| dc.date | 2008-01-29 | |
| dc.date.accessioned | 2026-07-07T08:57:14Z | |
| dc.date.available | 2026-07-07T08:57:14Z | |
| dc.description | In the CDM cosmological framework structures grow from merging with smaller structures. Merging should have observable effects on galaxies including destroying disks and creating spheroids. This proceeding aims to give a brief overview of how mergers occur in cosmological simulations. In this regard it is important to understand that dark matter halo mergers are not galaxy mergers; a theory of galaxy formation is necessary to connect the two. Mergers of galaxies in hydrodynamical simulations show a stronger dependence on mass than halo mergers in N-body simulations. If one knows how to connect galaxies to dark matter halos then the halo merger rate can be converted into a galaxy merger rate. When this is done it becomes clear that major mergers are many times more common in more massive galaxies offering a possible explanation of why Hubble type depends on galaxy mass. | |
| dc.description | 4 pages, 2 figures, to appear in the proceedings of "Formation and Evolution of Galaxy Disks", Rome, October 2007, Eds. J. Funes and E. M. Corsini | |
| dc.identifier | https://arxiv.org/abs/0801.4568 | |
| dc.identifier | http://arxiv.org/abs/0801.4568 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/146891 | |
| dc.subject | Astrophysics | |
| dc.title | Halo Mergers, Galaxy Mergers, and Why Hubble Type Depends on Mass | |
| dc.type | text |