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arXiv · 0901.4932

Galactic Nuclei Formation Via Globular Cluster Merging

R. Capuzzo-Dolcetta·P. Miocchi
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Abstract

Preliminary results are presented about a fully self-consistent N-body simulation of a sample of four massive globular clusters in close interaction within the central region of a galaxy. The N-body representation (with N=1.5x10^6 particles in total) of both the clusters and the galaxy allows to include in a natural and self-consistent way dynamical friction and tidal interactions. The results confirm the decay and merging of globulars as a viable scenario for the formation/accretion of compact nuclear clusters. Specifically: i) the frictional orbital decay is about 2 times faster than that predicted by the generalized Chandrasekhar formula; ii) the progenitor clusters merge in less than 20 galactic core-crossing times; iii) the NC configuration keeps quasi-stable at least within 70 galactic core-crossing times.

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R. Capuzzo-Dolcetta, P. Miocchi. 2009-01-30. Galactic Nuclei Formation Via Globular Cluster Merging. https://arxiv.org/abs/0901.4932

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