|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Populations of close binaries in galaxies with recent bursts of starformation | | S.B. Popov
; M.E. Prokhorov
; V.M. Lipunov
; | | Date: |
6 May 1999 | | Subject: | astro-ph | | Affiliation: | Sternberg Astronomical Institute, Moscow State University | | Abstract: | This paper is a continuation and development of our previous articles (Popov et al., 1997, 1998). We use ``Scenario Machine’’ (Lipunov et al., 1996b) -- the population synthesis simulator (for single binary systems calculations the program is available in WWW at: http://xray.sai.msu.su/sciwork/scenario.html (Nazin et al., 1998) -- to calculate evolution of populations of several types of X-ray sources during the first 20 Myrs after a starformation burst. We examined the evolution of 12 types of X-ray sources in close binary systems (both with neutron stars and with black holes) for different parameters of the IMF -- slopes: $alpha=1, alpha=1.35$ and $alpha=2.35$ and upper mass limits: 120 M_{odot}, 60 M_{odot} and 40 M_{odot}. Results, especially for sources with black holes, are very sensitive to variations of the IMF, and it should be taken into account when fitting parameters of starformation bursts. Results are applied to several regions of recent starformation in different galaxies: Tol 89, NGC 5253, NGC 3125, He 2-10, NGC 3049. Using known ages and total masses of starformation bursts (Shaerer at al., 1998) we calculate expected numbers of X-ray sources in close binaries for different parameters of the IMF. Usially, X-ray transient sources consisting of a neutron star and a main sequence star are most abundant, but for very small ages of bursts (less than $approx 4$ Myrs) sources with black holes can become more abundant. | | Source: | arXiv, astro-ph/9905070 | | 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