Dynamical Evolution of Rotating Single-Mass Stellar Cluster

Details Dynamical Evolution of Rotating Single-Mass Stellar Cluster Dynamical Evolution of Rotating Single-Mass Stellar Cluster

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jkas...38..207a&link_type=abstract

Journal of the Korean Astronomical Society, vol. 38, no. 2, pp. 207-210

Astronomy and Astrophysics

Astrophysics

6

Stellar Dynamics, Methods: N-Body Simulations

Scientific paper

We study the influence of rotation on the dynamical evolution of collisional single-mass stellar clusters up to core-collapse by using N-body simulations. Rotating King models which are characterized by dimensionless central potential parameter W_0 and the rotation parameter ω0 are used as initial models. Our results show that inner shells slowly contract until core-collapse phase is reached, followed by a slow expansion. Angular momentum is transported outward, while the core is rotating even faster than before, as predicted by gravogyro catastrophe theory. We confirm that rotation plays an important role in accelerating the dynamical evolution of stellar cluster, in particular in accelerating the core collapse.

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