Dynamical evolution of clusters with two stellar groups

Details Dynamical evolution of clusters with two stellar groups Dynamical evolution of clusters with two stellar groups

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..50..311a&link_type=abstract

Astrophysics and Space Science, vol. 50, no. 2, Aug. 1977, p. 311-322. Research supported by the Consiglio Nazionale delle Rice

Astronomy and Astrophysics

Astrophysics

8

Astronomical Models, Galactic Evolution, Star Clusters, Stellar Motions, Asymptotic Methods, Dynamic Characteristics, Kinetic Energy, Stellar Mass, Stellar Models

Scientific paper

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 dynamic evolutions and asymptotic behaviors. Escape of stars from clusters and the problem of equipartition of kinetic energy among the two star groups are discussed. Some characteristic properties of the last computed models with an age of 18 x 10 to the 9th yr have been pointed out and discussed in relation with some observed features of galactic globular clusters.

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