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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2001
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| Online Access: | https://www.redalyc.org/articulo.oa?id=57101155 |
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Table of Contents:
- Dynamics of Disk Galaxies and Their Satellites Héctor Velázquez Física, Astronomía y Matemáticas We address the heating and survival of galaxy disks by infalling satellites using self-consistent N-body simulations. We consider satellites with a variety of internal structures as well several orbits with different eccentricities and orientations. Also, the role of the central region of the galaxy (through a bulge) is studied. We found that the analytical results of Toth & Ostriker (1992) overestimate the heating and thickening of the disk by a factor of 2-3. In particular, we found disks are more robust to the accretion of massive satellites (MS ~ 0.2 MD) that follow retrograte orbits. Finally, the importance of the responsiveness of the halo is analized. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101155 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.11