Stability limits for 'isothermal' cores in globular clusters

Details Stability limits for 'isothermal' cores in globular clusters Stability limits for 'isothermal' cores in globular clusters

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.190..497k&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 190, Feb. 1980, p. 497-507.

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36

Astronomical Models, Globular Clusters, Isothermal Processes, Monte Carlo Method, Spheres, Systems Stability

Scientific paper

Stability limits for different energy truncated models of quasi-isothermal cores of globular clusters are defined and calculated by a method that does not make use of more than equilibrium configurations. All models of isolated clusters, including isothermal spheres, become unstable when the ratio v(escape)/v(dispersion) is not less than 4 at the center. The limits of appropriate models are well correlated with the changes in the evolution observed by Spitzer et al. in calculated collapsing cores. Most observed globular clusters, whose parameters allow calculation, are close to marginal stability.

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