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Test computations on the dynamical evolution of star clusters. [Fluid dynamic method]

Abstract

Test calculations have been carried out on the evolution of star clusters using the fluid-dynamical method devised by Larson (1970). Large systems of stars have been considered with specific concern with globular clusters. With reference to the analogous 'standard' model by Larson, the influence of varying in turn the various free parameters (cluster mass, star mass, tidal radius, mass concentration of the initial model) has been studied for the results. Furthermore, the partial release of some simplifying assumptions with regard to the relaxation time and distribution of the 'target' stars has been considered. The change of the structural properties is discussed, and the variation of the evolutionary time scale is outlined. An indicative agreement of the results obtained here with structural properties of globular clusters as deduced from previous theoretical models is pointed out.
Publication Date:
Jan 01, 1977
Product Type:
Journal Article
Reference Number:
AIX-08-326587; EDB-78-011532
Resource Relation:
Journal Name: Astrophys. Space Sci.; (Netherlands); Journal Volume: 46:1
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; STAR CLUSTERS; STAR EVOLUTION; ANISOTROPY; BOLTZMANN EQUATION; BOLTZMANN STATISTICS; COMPUTER CODES; FOKKER-PLANCK EQUATION; ITERATIVE METHODS; MASS; NUMERICAL SOLUTION; RADIAL VELOCITY; RELAXATION; STAR MODELS; SYMMETRY; DIFFERENTIAL EQUATIONS; EQUATIONS; MATHEMATICAL MODELS; VELOCITY; 640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources
OSTI ID:
7281914
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: APSSB
Submitting Site:
INIS
Size:
Pages: 205-214
Announcement Date:
Oct 01, 1977

Citation Formats

Angeletti, L, and Giannone, P. (Rome Univ. (Italy)). Test computations on the dynamical evolution of star clusters. [Fluid dynamic method]. Netherlands: N. p., 1977. Web. doi:10.1007/BF00643765.
Angeletti, L, & Giannone, P. (Rome Univ. (Italy)). Test computations on the dynamical evolution of star clusters. [Fluid dynamic method]. Netherlands. https://doi.org/10.1007/BF00643765
Angeletti, L, and Giannone, P. (Rome Univ. (Italy)). 1977. "Test computations on the dynamical evolution of star clusters. [Fluid dynamic method]." Netherlands. https://doi.org/10.1007/BF00643765.
@misc{etde_7281914,
title = {Test computations on the dynamical evolution of star clusters. [Fluid dynamic method]}
author = {Angeletti, L, and Giannone, P. (Rome Univ. (Italy))}
abstractNote = {Test calculations have been carried out on the evolution of star clusters using the fluid-dynamical method devised by Larson (1970). Large systems of stars have been considered with specific concern with globular clusters. With reference to the analogous 'standard' model by Larson, the influence of varying in turn the various free parameters (cluster mass, star mass, tidal radius, mass concentration of the initial model) has been studied for the results. Furthermore, the partial release of some simplifying assumptions with regard to the relaxation time and distribution of the 'target' stars has been considered. The change of the structural properties is discussed, and the variation of the evolutionary time scale is outlined. An indicative agreement of the results obtained here with structural properties of globular clusters as deduced from previous theoretical models is pointed out.}
doi = {10.1007/BF00643765}
journal = []
volume = {46:1}
journal type = {AC}
place = {Netherlands}
year = {1977}
month = {Jan}
}