Speaker
Description
Repeated stellar collisions and hierarchical mergers in dense and massive star clusters are among the most straightforward mechanisms to produce intermediate-mass black holes (IMBHs).
In my talk, I will investigate the formation channels of IMBHs in globular clusters up to $10^6\,\rm{M_{\odot}}$. To do this, I will rely on an extensive set of accurate N-body models run with the recently-developed $\mathtt{PeTar-MOBSE}$, which is uniquely conceived to integrate both stellar interactions and long-term dynamical evolution in massive and long-lived stellar clusters. I will show how the initial central densities and masses of the cluster affect the probability to form and retain an IMBH. Finally, I will discuss the peculiar impact of hierarchical mergers on the growth of IMBHs and the expected mass spectra of binary black hole mergers.
Affliation | Gran Sasso Science Institute |
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Current Position | PhD Student |