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Dynamics of stellar black holes in young star clusters with different metallicities - I. Implications for X-ray binaries
M. Mapelli, L. Zampieri, E. Ripamonti +1
We present N-body simulations of intermediate-mass (3000-4000 Msun) young star clusters (SCs) with three different metallicities (Z=0.01, 0.1 and 1 Zsun), including metal-dependent…
Eccentric disc instability in stellar discs formed from inspiraling gas clouds in the Galactic Centre
Alessia Gualandris, Michela Mapelli, Hagai B. Perets
The inspiral of a turbulent molecular cloud in the Galactic Centre may result in the formation of a small, dense and moderately eccentric gas disc around the supermassive black hol…
A cosmological view of extreme mass-ratio inspirals in nuclear star clusters
M. Mapelli, E. Ripamonti, A. Vecchio +2
There is increasing evidence that many galaxies host both a nuclear star cluster (NC) and a super-massive black hole (SMBH). Their coexistence is particularly prevalent in spheroid…
A minor merger scenario for the ultraluminous X-ray source ESO 243-49 HLX-1
M. Mapelli, L. Zampieri, L. Mayer
The point-like X-ray source HLX-1 is the brightest known ultraluminous X-ray source and likely the strongest intermediate-mass black hole candidate. HLX-1 is hosted in the S0 galax…
In situ formation of SgrA* stars via disk fragmentation: parent cloud properties and thermodynamics
M. Mapelli, T. Hayfield, L. Mayer +1
The formation of the massive young stars surrounding SgrA* is still an open question. In this paper, we simulate the infall of a turbulent molecular cloud towards the Galactic Cent…