Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-11-20
Astronomy and Astrophysics
Astrophysics
Accepted for publication in MNRAS, 11 pages, 10 figures
Scientific paper
10.1111/j.1365-2966.2007.12738.x
We compare our latest single and binary stellar model results from the Cambridge STARS code to several sets of observations. We examine four stellar population ratios, the number of blue to red supergiants, the number of Wolf-Rayet stars to O supergiants, the number of red supergiants to Wolf-Rayet stars and the relative number of Wolf-Rayet subtypes, WC to WN stars. These four ratios provide a quantitative measure of nuclear burning lifetimes and the importance of mass loss during various stages of the stars' lifetimes. In addition we compare our models to the relative rate of type Ib/c to type II supernovae to measure the amount of mass lost over the entire lives of all stars. We find reasonable agreement between the observationally inferred values and our predicted values by mixing single and binary star populations. However there is evidence that extra mass loss is required to improve the agreement further, to reduce the number of red supergiants and increase the number of Wolf-Rayet stars.
Eldridge John J.
Izzard Robert G.
Tout Christopher A.
No associations
LandOfFree
The effect of massive binaries on stellar populations and supernova progenitors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The effect of massive binaries on stellar populations and supernova progenitors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The effect of massive binaries on stellar populations and supernova progenitors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-391602