|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
18 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Theoretical He I Emissivities in the Case B Approximation | | R. L. Porter
; R. P. Bauman
; G. J. Ferland
; K. B. MacAdam
; | | Date: |
10 Feb 2005 | | Journal: | Astrophys.J. 622 (2005) L73 | | Subject: | astro-ph | | Abstract: | We calculate the He I case B recombination cascade spectrum using improved radiative and collisional data. We present new emissivities over a range of electron temperatures and densities. The differences between our results and the current standard are large enough to have a significant effect not only on the interpretation of observed spectra of a wide variety of objects but also on determinations of the primordial helium abundance. | | Source: | arXiv, astro-ph/0502224 | | 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 claudebot
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER