Simulating the tidal disruption of stars by stellar-mass black holes using moving-mesh hydrodynamics

Abstract

In the centers of dense star clusters, close encounters between stars and compact objects are likely to occur. We studied tidal disruption events of main-sequence (MS) stars by stellar-mass black holes (termed mu TDEs), which can shed light on the processes occurring in these clusters, including being an avenue in the mass growth of stellar-mass BHs. Using the moving-mesh hydrodynamics code AREPO we performed a suite of 58 hydrodynamics simulations of partial mu TDEs of realistic MESA M odot M odot M odot M odot M odot M odot M odot $ star. Finally, we provide best-fit analytical formulae for the aforementioned range of parameters that can be incorporated into cluster codes to model star-black-hole interaction more accurately.