| | |
| | |
Stat |
Members: 3645 Articles: 2'501'711 Articles rated: 2609
20 April 2024 |
|
| | | |
|
Article overview
| |
|
Building up the Stellar Halo of the Milky Way | Amina Helmi
; Simon D.M. White
; | Date: |
6 Nov 1998 | Subject: | astro-ph | Affiliation: | Sterrewacht Leiden) and Simon D.M. White (MPA, Garching | Abstract: | We study numerical simulations of satellite galaxy disruption in a potential resembling that of the Milky Way. Our goal is to assess whether a merger origin for the stellar halo would leave observable fossil structure in the phase-space distribution of nearby stars. We show how mixing of disrupted satellites can be quantified using a coarse-grained entropy. Although after 10 billion years few obvious asymmetries remain in the distribution of particles in configuration space, strong correlations are still present in velocity space. We briefly describe how we can understand these effects based on the conservation of fine-grained phase-space density in an action-angle formalism. We also discuss the implications of our results on the known properties of the stellar halo. | Source: | arXiv, astro-ph/9811108 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |