|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Origin of non-unique deprojection of the Galactic bar | | HongSheng Zhao
; | | Date: |
7 May 1997 | | Subject: | astro-ph | | Affiliation: | Leiden Obs | | Abstract: | Non-uniqueness of deprojecting the integrated light distribution of a nearby or faraway triaxial body is reviewed in the context of deriving the volume density of the Galactic bar from the COBE/DIRBE maps of the Galactic plane. The exact origin of this non-uniqueness is studied. One can write down a sequence of triaxial bar models which appear identical in integrated light from the Sun’s perspective, and the whole sequence is mapped out as a function of the Galactocentric distance of the observer from galactic to extragalactic distance scales. While mirror symmetries and perspective effects are compatible with any orientation of the bar in the sequence, weak upper and lower bounds can still be placed on the angles and axis ratios of the bar by positivity and other general requirements. Star count data of bulge giants are ideal for selecting a unique model from the sequence. | | Source: | arXiv, astro-ph/9705046 | | 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