SIMBAD references

2016MNRAS.456.2457A - Mon. Not. R. Astron. Soc., 456, 2457-2466 (2016/March-1)

The dearth of nuclear star clusters in bright galaxies.

ARCA-SEDDA M., CAPUZZO-DOLCETTA R. and SPERA M.

Abstract (from CDS):

We investigate the interaction of a massive globular cluster (GC) with a super massive black hole (SMBH), located at the centre of its host galaxy, by means of direct N-body simulations. The results show that tidal distortions induced by the stellar background and the SMBH act on a time shorter than that of dynamical friction decay for a 106 M GC whenever the SMBH mass exceeds ∼ 108 M. This implies an almost complete dissolution of the infalling GC before it reaches the inner region ( ≲ 5 pc) of the parent galaxy. The generalization of this result to a larger sample of infalling GCs shows that such destructive process may prevent the formation and growth of a bright galactic nucleus. Another interesting, serendipitous, result we obtained is that the close interaction between the SMBH and the GC produces a `wave' of stars that escape from the cluster and, in a fraction, even from the whole galaxy.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): methods: numerical - galaxies: nuclei - galaxies: star clusters: general - quasars: supermassive black holes

Simbad objects: 3

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