| | |
| | |
Stat |
Members: 3645 Articles: 2'504'928 Articles rated: 2609
25 April 2024 |
|
| | | |
|
Article overview
| |
|
New high S/N observations of the Li-6/Li-7 blend in HD 84937 and two other metal-poor stars | R.Cayrel
; M. Spite
; F. Spite
; E. Vangioni-Flam
; M. Casse
; J. Audouze
; | Date: |
15 Dec 1998 | Subject: | astro-ph | Abstract: | High S/N ratio spectra have been obtained at CFHT at a spectral resolution of 100 000 for HD 84397 and two other metal poor stars. For HD 84 937, the S/N of 650 per pixel was obtained, yielding Li-6/Li-7 = 0.052 with a sigma of 0.019. The Li-6 abundance is compared with recent models of formation of light elements LiBeB. This comparison shows that Li-6 is either undepleted or only moderatly depleted in the star of interest. The depletion of Li-7 in this star is estimated to be less than 0.1 dex. The abundance of lithium on the Spite plateau accordingly can be takien as representative of the cosmological primordial lithium. See the joint paper astro-ph/9811327. | Source: | arXiv, astro-ph/9901205 | 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:
| |