The stars and gas in outer parts of galaxy disks: Extended or truncated -- flat or warped?
| dc.creator | van der Kruit, P. C. | |
| dc.date | 2007-12-04 | |
| dc.date.accessioned | 2026-07-07T08:47:09Z | |
| dc.date.available | 2026-07-07T08:47:09Z | |
| dc.description | I review observations of truncations of stellar disks and models for their origin, compare observations of truncations in moderately inclined galaxies to those in edge-on systems and discuss the relation between truncations and HI-warps and their systematics and origin. Truncations are a common feature in edge-on stellar disks, but the relation of truncations in face-on to those in edge-on galaxies needs further clarification. The origin of truncations is most likely related to a maximum in the specific angular momentum in the material that formed the stellar disks, but this model does probably require some redistribution of angular momentum. HI-warps start just beyond the truncation radius and disks and warps appear distinct components. This suggests that inner disks form initially and settle as rigid, very flat structures, while HI-warps result from later infall of gas with a different orientation of the angular momentum. | |
| dc.description | Invited Review at the Vatican Symposium: Formation and Evolution of Galaxy Disks, October 2007, proceeding editors Jose G. Funes, SJ and Enrico M. Corsini | |
| dc.identifier | https://arxiv.org/abs/0712.0447 | |
| dc.identifier | http://arxiv.org/abs/0712.0447 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/143500 | |
| dc.subject | Astrophysics | |
| dc.title | The stars and gas in outer parts of galaxy disks: Extended or truncated -- flat or warped? | |
| dc.type | text |