|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Stirred, not Clumped: Evolution of Temperature Profiles in the Outskirts of Galaxy Clusters | | Camille Avestruz
; Daisuke Nagai
; Erwin T. Lau
; | | Date: |
5 May 2016 | | Abstract: | Recent statistical X-ray measurements of the intracluster medium (ICM)
indicate that gas temperature profiles in the outskirts of galaxy clusters
deviate from self-similar evolution. Using a mass-limited sample of galaxy
clusters from cosmological hydrodynamical simulations, we show that the
departure from self-similarity can be explained by non-thermal gas motions
driven by mergers and accretion. Contrary to previous claims, gaseous
substructures only play a minor role in the temperature evolution in cluster
outskirts. A careful choice of halo overdensity definition in self-similar
scaling mitigates these departures. Our work highlights the importance of
non-thermal gas motions in ICM evolution and the use of galaxy clusters as
cosmological probes. | | Source: | arXiv, 1605.1723 | | 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