Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-10-11
Astronomy and Astrophysics
Astrophysics
11 pages, Latex, 11 figures, accepted for publication in MNRAS
Scientific paper
10.1046/j.1365-8711.2000.03093.x
We performed numerical simulations of star cluster encounters with Hernquist's TREECODE in a CRAY YMP-2E computer. We used different initial conditions (relative positions and velocities, cluster sizes, masses and concentration degrees) with total number of particles per simulation ranging from 4608 to 20480. Long term interaction stages (up to 1 Gyr) when the pair coalesces into a single cluster are compared with isolated LMC clusters. Evidence is found that when seen in a favourable plane these resulting clusters show elliptical shapes due to the disruption of one of the companions. These elliptical shapes are essentially time independent but they do depend on the initial structural parameters of the pair components. We also analyzed the fraction of stars that are ejected to the field by the interaction. We found that this fraction can be almost 50% for the disrupted cluster. These simulations can represent a possible mechanism to explain the ellipticity observed on several star clusters in the Magellanic Clouds.
Bica Eduardo
de Oliveira M. R.
Dottori Horacio
No associations
LandOfFree
Final Stages of N-body Star Cluster Encounters 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 Final Stages of N-body Star Cluster Encounters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Final Stages of N-body Star Cluster Encounters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-446010