|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
The high-velocity cloud complex Galactic Center Negative as seen by EBHIS and GASS. I. Cloud catalog and global properties | | Benjamin Winkel
; Nadya Ben Bekhti
; Verena Darmstädter
; Lars Flöer
; Jürgen Kerp
; Philipp Richter
; | | Date: |
18 Jul 2011 | | Abstract: | Using Milky Way data of the new Effelsberg-Bonn HI Survey (EBHIS) and the
Galactic All-Sky Survey (GASS), we present a revised picture of the
high-velocity cloud (HVC) complex Galactic Center Negative (GCN). Owing to the
higher angular resolution of these surveys compared to previous studies (e.g.,
the Leiden Dwingeloo Survey), we resolve Complex GCN into lots of individual
tiny clumps, that mostly have relatively broad line widths of more than 15
km/s. We do not detect a diffuse extended counterpart, which is unusual for an
HVC complex. In total 243 clumps were identified and parameterized which allows
us to statistically analyze the data. Cold-line components (i.e., w < 7.5 km/s)
are found in about 5% only of the identified cloudlets. Our analysis reveals
that Complex GCN is likely built up of several subpopulations that do not share
a common origin. Furthermore, Complex GCN might be a prime example for warm-gas
accretion onto the Milky Way, where neutral HI clouds are not stable against
interaction with the Milky Way gas halo and become ionized prior to accretion. | | Source: | arXiv, 1107.3399 | | 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