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arXiv · 1908.00266

MOCCA-SURVEY Database I: Dissolution of tidally filling star clusters harboring black hole subsystem

Mirek Giersz·Abbas Askar·Long Wang·Arkadiusz Hypki·Agostino Leveque·Rainer Spurzem
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Abstract

We investigate the dissolution process of star clusters embedded in an external tidal field and harboring a subsystem of stellar-mass black hole. For this purpose we analyzed the MOCCA models of real star clusters contained in the Mocca Survey Database I. We showed that the presence of a stellar-mass black hole subsystem in tidally filling star cluster can lead to abrupt cluster dissolution connected with the loss of cluster dynamical equilibrium. Such cluster dissolution can be regarded as a third type of cluster dissolution mechanism. We additionally argue that such a mechanism should also work for tidally under-filling clusters with a top-heavy initial mass function.

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Mirek Giersz, Abbas Askar, Long Wang, Arkadiusz Hypki, Agostino Leveque, Rainer Spurzem. 2019-08-01. MOCCA-SURVEY Database I: Dissolution of tidally filling star clusters harboring black hole subsystem. https://doi.org/10.1017/s1743921319006690

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