NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-19 T23:28:26 PDT
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For refcode 1999MNRAS.308..961C:
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Copyright by Royal Astronomical Society. 1999MNRAS.308..961C Globular cluster system erosion and nucleus formation in elliptical galaxies R. Capuzzo-Dolcetta and A. Tesseri Accepted 1999 April 27. Received 1999 April 19; in original form 1998 June 29 ABSTRACT The radial distribution of globular clusters in galaxies is always less peaked to the centre than that of the halo stars. Extending previous work to a sample of Hubble Space Telescope globular cluster systems in ellipticals, we evaluate the number of clusters potentially lost to the galactic centre as the integrals of the difference between the observed globular cluster system distribution and the underlying halo light profile. In the sample of galaxies examined it is found that the initial populations of globular clusters may have been ~30 per cent to 50 per cent richer than now. If these missing globular clusters have decayed and have been partly destroyed in the very central galactic zones, they have carried there a significant quantity of mass that, plausibly, contributed to the formation and feeding of a massive object therein. It is relevant to note that the observed correlation between the core radius of the globular cluster system and the parent galaxy luminosity can be interpreted as a result of evolution. Keywords: galaxies: elliptical and lenticular, cD - galaxies: nuclei - galaxies: star clusters
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