期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 456, 期 3, 页码 2457-2466出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stv2835
关键词
methods: numerical; galaxies: nuclei; galaxies: star clusters: general; quasars: supermassive black holes
资金
- MIUR [PRIN PRIN 2010 LY5N2T 005]
- University of Rome Sapienza [D.D. 52/2015]
- Italian Ministry of Education, University and Research (MIUR) [FIRB 2012 RBFR12PM1F]
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 10(6) M-circle dot GC whenever the SMBH mass exceeds similar to 10(8) M-circle dot. This implies an almost complete dissolution of the infalling GC before it reaches the inner region (less than or similar to 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.
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