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Dynamical evolution of clusters with two stellar groups

Abstract

The generalization of the fluid-dynamical approach from one-component star clusters to clusters with several stellar groups (as far as the star masses are concerned) has been applied to the study of two-component clusters. Rather extreme values of stellar masses and masses of groups were chosen in order to emphasize the different dynamical evolutions and asymptotic behaviors. Escape of stars from clusters and the problem of equipartition of kinetic energy among the two star groups are discussed. Comparisons of the main features of the results with those obtained by other authors have shown a good agreement. Some characteristic properties of the last computed models with an age of 18x10/sup 9/ yr have been pointed out and discussed in relation with some observed features of galactic globular clusters.
Publication Date:
Aug 01, 1977
Product Type:
Journal Article
Reference Number:
AIX-08-345275; EDB-78-047083
Resource Relation:
Journal Name: Astrophys. Space Sci.; (Netherlands); Journal Volume: 50:2
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; STAR CLUSTERS; STAR EVOLUTION; KINETIC ENERGY; MASS; STARS; VELOCITY; ENERGY; 640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources
OSTI ID:
5246103
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: APSSB
Submitting Site:
INIS
Size:
Pages: 311-322
Announcement Date:
Dec 01, 1977

Citation Formats

Angeletti, L, and Giannone, P. (Rome Univ. (Italy)). Dynamical evolution of clusters with two stellar groups. Netherlands: N. p., 1977. Web. doi:10.1007/BF00641739.
Angeletti, L, & Giannone, P. (Rome Univ. (Italy)). Dynamical evolution of clusters with two stellar groups. Netherlands. https://doi.org/10.1007/BF00641739
Angeletti, L, and Giannone, P. (Rome Univ. (Italy)). 1977. "Dynamical evolution of clusters with two stellar groups." Netherlands. https://doi.org/10.1007/BF00641739.
@misc{etde_5246103,
title = {Dynamical evolution of clusters with two stellar groups}
author = {Angeletti, L, and Giannone, P. (Rome Univ. (Italy))}
abstractNote = {The generalization of the fluid-dynamical approach from one-component star clusters to clusters with several stellar groups (as far as the star masses are concerned) has been applied to the study of two-component clusters. Rather extreme values of stellar masses and masses of groups were chosen in order to emphasize the different dynamical evolutions and asymptotic behaviors. Escape of stars from clusters and the problem of equipartition of kinetic energy among the two star groups are discussed. Comparisons of the main features of the results with those obtained by other authors have shown a good agreement. Some characteristic properties of the last computed models with an age of 18x10/sup 9/ yr have been pointed out and discussed in relation with some observed features of galactic globular clusters.}
doi = {10.1007/BF00641739}
journal = []
volume = {50:2}
journal type = {AC}
place = {Netherlands}
year = {1977}
month = {Aug}
}