The dynamical evolution of globular clusters in the Galaxy

Details The dynamical evolution of globular clusters in the Galaxy The dynamical evolution of globular clusters in the Galaxy

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..377w&link_type=abstract

In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J

Astronomy and Astrophysics

Astronomy

Dense Stellar Systems

Scientific paper

Given various initial conditions the dynamical evolution of globular clusters in our Galaxy is investigated in detail by means of Monte Carlo simulations. Four dynamic mechanisms in the present paper are considered. They are the stellar evaporation in the tidal field the stellar evolution during the early evolutionary stage the tidal shocks due to clusters passing through the bulge and disk and the dynamical friction. Comparing with the current observations which include the number density distribution in space mass function etc. the so-called standard modes for both the power law and Gaussian cluster initial mass functions are selected among many runs of smulations. The deviation from the standard modes which is resulted from the change of the parameter for the initial conditions is discussed in detail. The discussion of the model parameters is also presented although they are adopted as the typical values based on previous work. Based on our simulations some relevant discussions about the mass contributions to the Galactic central region and stars in the halo due to the dynamic evolution of globular clusters are also qualitatively presented.

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