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Abstract: Preliminary results are presented about a fully self-consistent N-bodysimulation of a sample of four massive globular clusters in close interactionwithin the central region of a galaxy. The N-body representation withN=1.5x10^6 particles in total of both the clusters and the galaxy allows toinclude in a natural and self-consistent way dynamical friction and tidalinteractions. The results confirm the decay and merging of globulars as aviable scenario for the formation-accretion of compact nuclear clusters.Specifically: i the frictional orbital decay is about 2 times faster than thatpredicted by the generalized Chandrasekhar formula; ii the progenitor clustersmerge in less than 20 galactic core-crossing time; iii the NC configurationkeeps a quasi-stable state at least within 70 galactic core-crossing times.



Author: P. Miocchi, R. Capuzzo-Dolcetta Dep. of Physics, Sapienza, Univesity of Roma, Italy

Source: https://arxiv.org/







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