Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.221..553s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 221, Aug. 1, 1986, p. 553-569.
Astronomy and Astrophysics
Astronomy
6
Star Clusters, Stellar Evolution, Stellar Motions, Velocity Distribution, Anisotropy, Continuity Equation, Spheroids, Stellar Oscillations, Virial Theorem
Scientific paper
The 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.
Kochhar Rajesh K.
Som Sunder G.
No associations
LandOfFree
On the dynamical evolution of a spheroidal cluster. II - Anisotropic velocity distribution 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 On the dynamical evolution of a spheroidal cluster. II - Anisotropic velocity distribution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the dynamical evolution of a spheroidal cluster. II - Anisotropic velocity distribution will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-893740