On the Origin of Early-type Galaxies Nuclei

Details On the Origin of Early-type Galaxies Nuclei On the Origin of Early-type Galaxies Nuclei

2007-09-04

arxiv.org/abs/0709.0455v1

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure, contributed talk at the Conference "Pathways Through an Eclectic Universe", Tenerife, Spain, 23rd to 27th A

Scientific paper

The ACS Virgo cluster survey by Cote' and collaborators shows the presence of compact nuclei at the photocenters of many early-type galaxies. It is argued that they are the low-mass counterparts of nuclei hosting Super Massive Black Holes (SBHs) detected in the bright galaxies. If this view is correct, then one should think in terms of central massive objects, either SBHs or Compact Stellar Clusters (CSCs), that accompany the formation of almost all early-type galaxies. In this observational frame, the hypothesis that galactic nuclei may be the remains of globular clusters driven inward to the galactic center by dynamical friction and there merged, finds an exciting possible confirm. In this short paper we report of our recent results on globular cluster mergers obtained by mean of detailed N-body simulations.

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