Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-12-12
Mon.Not.Roy.Astron.Soc. 332 (2002) 49
Astronomy and Astrophysics
Astrophysics
7 pages, 5 figures, accepted by MNRAS
Scientific paper
10.1046/j.1365-8711.2002.05266.x
We performed high-resolution simulations of two stellar collisions relevant for stars in globular clusters. We considered one head-on collision and one off-axis collision between two 0.6 M_sun main sequence stars. We show that a resolution of about 100 000 particles is sufficient for most studies of the structure and evolution of blue stragglers. We demonstrate conclusively that collision products between main-sequence stars in globular clusters do not have surface convection zones larger than 0.004 M_sun after the collision, nor do they develop convection zones during the `pre-main-sequence' thermal relaxation phase of their post-collision evolution. Therefore, any mechanism which requires a surface convection zone (i.e. chemical mixing or angular momentum loss via a magnetic wind) cannot operate in these stars. We show that no disk of material surrounding the collision product is produced in off-axis collisions. The lack of both a convection zone and a disk proves a continuing problem for the angular momentum evolution of blue stragglers in globular clusters.
Adams Tim
Bate Matthew
Davies Melvyn
Sills Alison
No associations
LandOfFree
High-resolution simulations of stellar collisions between equal-mass main-sequence stars in globular clusters 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 High-resolution simulations of stellar collisions between equal-mass main-sequence stars in globular clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-resolution simulations of stellar collisions between equal-mass main-sequence stars in globular clusters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-82110