|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Detection of a large massive circumstellar disk around a high-mass young stellar object in the Carina Nebula | | Thomas Preibisch
; Thorsten Ratzka
; Tiago Gehring
; Henrike Ohlendorf
; Hans Zinnecker
; Robert R. King
; Mark J. McCaughrean
; James R. Lewis
; | | Date: |
19 Apr 2011 | | Abstract: | (abbreviated) We investigate the spatial structure and spectral energy
distribution of an edge-on circumstellar disk around an optically invisible
young stellar object that is embedded in a dark cloud in the Carina Nebula.
Whereas the object was detected as an apparently point-like source in earlier
infrared observations, only the superb image quality (FWHM ~0.5") of our VLT /
HAWK-I data could reveal, for the first time, its peculiar morphology. It
consists of a very red point-like central source that is surrounded by a
roughly spherical nebula, which is intersected by a remarkable dark lane
through the center. We construct the spectral energy distribution of the object
from 1 to 870 microns and perform a detailed radiative transfer modeling of the
spectral energy distribution and the source morphology. The observed object
morphology in the near-IR images clearly suggests a young stellar object that
is embedded in an extended, roughly spherical envelope and surrounded by a
large circumstellar disk with a diameter of ~5500 AU that is seen nearly
edge-on. The radiative transfer modeling shows that the central object is a
massive (10-15 Msun) young stellar object. The circumstellar disk has a mass of
about 2 Msun. The disk object in Carina is one of the most massive young
stellar objects for which a circumstellar disk has been detected so far, and
the size and mass of the disk are very large compared to the corresponding
values found for most other similar objects. | | Source: | arXiv, 1104.3706 | | 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