|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
19 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
On the origin of anomalous velocity clouds in the Milky Way | | Tim W. Connors
; Daisuke Kawata
; Jeremy Bailin
; Jason Tumlinson
; Brad K. Gibson
; | | Date: |
13 Sep 2005 | | Subject: | astro-ph | | Affiliation: | 1 and 2), Jeremy Bailin , Jason Tumlinson , Brad K. Gibson ( Swinburne Carnegie Observatories Yale | | Abstract: | We report that neutral hydrogen (HI) gas clouds, resembling High Velocity Clouds (HVCs) observed in the Milky Way (MW), appear in MW sized disk galaxies formed in high resolution Cold Dark Matter (CDM) cosmological simulations which self-consistently include gas-dynamics, radiative cooling, star formation, supernova feedback, and metal enrichment. Two disk galaxies found in cosmological simulations are analyzed, and HI column density and velocity distributions in full-sky aitoff projections are constructed. The simulations demonstrate that CDM is able to create galaxies with sufficient quantities of HVCs to explain the HVCs observed within the MW, and that they are found within a galactocentric radius of 150 kpc. We also find that one of the galaxies has an outer gas ring in polar orbit, i.e. a polar gas ring, with radius 30 kpc, which appears as a large structure of HVCs in the aitoff projection. Such large structures may share an origin similar to large HVCs observed in the MW, such as Complex C. | | Source: | arXiv, astro-ph/0509314 | | 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:
| |
REGISTER