Astronomy and Astrophysics – Astrophysics
Scientific paper
1993-06-25
Astronomy and Astrophysics
Astrophysics
33 pages plus 14 figures (appended as postscript files), Tex, C Version 3.141
Scientific paper
The presence of protostellar disks can greatly increase the dissipation during close stellar encounters, leading to the formation of a significant population of binaries during the initial collapse and virialization of a cluster. We have used N-body simulations of collapsing globular clusters to find the major factors that determine the efficiency of binary formation through star-disk captures. This work serves the dual purpose of verifying the results of earlier analytic work as well as examining parameters not testable by that work. As in the earlier work, typical binary fractions of a few percent are found. For the parameters studied, the results are found to depend remarkably little upon disk evolution, the mass distribution of the stars, or their spatial distribution, though distributions in which the stars are highly clumped yield binary fractions larger by a factor of a few. The direct N-body integrations limit the models to relatively small values of N. Semiempirical relations are derived, however, which allow the results to be extrapolated to values of N appropriate to globular clusters.
Clarke Catherine J.
Murray Stephen D.
No associations
LandOfFree
N-Body Simulations of Star-Disc Captures 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 N-Body Simulations of Star-Disc Captures in Globular Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and N-Body Simulations of Star-Disc Captures in Globular Clusters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-699162