Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974a%26a....35..237a&link_type=abstract
Astronomy and Astrophysics, vol. 35, no. 2, Oct. 1974, p. 237-250.
Astronomy and Astrophysics
Astrophysics
76
Astronomical Models, Binary Stars, Star Clusters, Stellar Evolution, Stellar Mass Ejection, Computerized Simulation, Many Body Problem, Stellar Motions, Stellar Spectra
Scientific paper
The dynamical evolution of seven isolated cluster models which have been studied by direct N-body methods is discussed. It is confirmed that core contraction also leads to the formation of a dominant central binary in equal-mass systems, on a time scale of 30 to 40 crossing times as compared to about 10 crossing times for 250 particles with different masses. Most of the energy absorbed by close binaries goes into cluster expansion rather than escape and the overall evolution of the mass spectrum slows down significantly when measured by the initial crossing time. Expansion of the inner cluster region eventually leads to the formation of hierarchical triple systems which are internally stable as long as the outer pericenter distance does not become too small. The computed escape rates compare well with the theory of Henon (1969) when the masses are different but the equal-mass systems eject more particles than expected.
No associations
LandOfFree
Dynamical evolution of simulated star clusters. I - Isolated models 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 Dynamical evolution of simulated star clusters. I - Isolated models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical evolution of simulated star clusters. I - Isolated models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-791205