Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4398
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dc.contributor.authorSom Sunder, G-
dc.contributor.authorKochhar, R. K-
dc.date.accessioned2009-03-16T16:59:20Z-
dc.date.available2009-03-16T16:59:20Z-
dc.date.issued1986-08-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, Vol. 221, pp. 553 - 569en
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/2248/4398-
dc.description.abstractThe dynamical evolution of a spheroidal cluster of point masses is investigated theoretically, extending the analysis of Som Sunder and Kochhar (1985) by removing the assumption of locally isotropic velocity. The basic equations are derived, and results for the collapse of pressureless systems, systems with negative total energy and nonzero pressure, systems with positive total energy, and heterogeneous spheroids are presented graphically. It is found that the zero-pressure cluster behaves like the pressureless gas clouds studied by Lin et al. (1965), that a negative-energy cluster with pressure undergoes finite-amplitude size and eccentricity oscillations (with amplitude dependent on the initial eccentricity) but does not oscillate between prolate and oblate configurations, and that positive-energy clusters (including heterogeneous clusters) remain prolate or oblate while expanding to dispersion.en
dc.language.isoenen
dc.publisherRoyal Astronomical Societyen
dc.relation.urihttp://adsabs.harvard.edu/abs/1986MNRAS.221..553Sen
dc.rights©Royal Astronomical Society-
dc.subjectStar Clustersen
dc.subjectStellar Evolutionen
dc.subjectStellar Motionsen
dc.subjectVelocity Distributionen
dc.subjectAnisotropyen
dc.subjectContinuity Equationen
dc.subjectSpheroidsen
dc.subjectStellar Oscillationsen
dc.subjectVirial Theoremen
dc.titleOn the dynamical evolution of a spheroidal cluster. II - Anisotropic velocity distributionen
dc.typeArticleen
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