Dynamical Simulation of Gravothermal Catastrophe

Details Dynamical Simulation of Gravothermal Catastrophe Dynamical Simulation of Gravothermal Catastrophe

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrvl..92b1102k&link_type=abstract

Physical Review Letters, vol. 92, Issue 2, id. 021102

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5

Stellar Dynamics And Kinematics, Celestial Mechanics, Stellar Clusters And Associations

Scientific paper

We investigate the dynamical evolution of gravothermal catastrophe in a model of a spherical cluster where, besides the energy and angular momentum, an additional integral of motion is also taken into account. Using dynamical simulation, we study a system of concentric, rotating, spherical shells employing a precise, event-driven, algorithm that permits the controlled exchange of internal angular momentum. Initially the system starts to relax to a locally stable state that is in good agreement with mean field predictions. This is followed by core collapse with the development of a core-halo structure and gravothermal oscillation.

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