Shortening of core collapse time in star clusters with two mass components

Details Shortening of core collapse time in star clusters with two mass components Shortening of core collapse time in star clusters with two mass components

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26at...20...51k&link_type=abstract

Astronomical and Astrophysical Transactions, Vol. 20, p. 51 - 54 (2001). In: European astronomy at the turn of the millennium. J

Astronomy and Astrophysics

Astronomy

Methods: Numerical, Galaxies: Star Clusters, Methods: Numerical, Galaxies: Star Clusters

Scientific paper

We present high-accuracy N-body simulations of isolated star clusters consisting of two distinct mass components, m1 and m2, and vary their relative ratio =m2/m1. The mass fraction of the more massive component relative to the total mass, q = M2/Mtot, is set equal to 0.1 in all cases. We determine the average star mass within a fixed 'Lagrangian shell'. It is found that the time of first core collapse is reduced by the ratio μ with respect to a cluster with uniform masses.

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