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Bulge Formation in Late-type Galaxies — Cuspy- vs Soft-core Dark Matter Density Profiles
Published online by Cambridge University Press: 26 May 2016
Abstract
Observational data increasingly indicate that the mergers of galaxies, even minor mergers, can trigger the formation of a set of SSCs within galaxies. the follow-up, dynamical evolution of SSCs in a configuration of dark matter (DM) dominated systems would be basically similar to what we simulated in this work. the scenario that we propose yields a series of results comparable to the relevant observations. Most notable are two points. One is that the low bulge detection rate in very late-type galaxies is in favour of soft-core DM profiles in galaxies of this kind. On the other hand, the observed young ages of nuclear clusters provide evidence supporting cuspy-core profiles. in conclusion, both the soft- and cuspy-core DM density profiles are suitable to relevant dwarf galaxies based on comparisons with observations.
- Type
- Part 9: Disks
- Information
- Symposium - International Astronomical Union , Volume 220: Dark Matter in Galaxies , 2004 , pp. 325 - 326
- Copyright
- Copyright © Astronomical Society of the Pacific 2004