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Published online by Cambridge University Press: 25 May 2016
The hypothesis -raised and discussed in - that the source of AGN fueling can be, at least in elliptical galaxies, stars belonging to a dense stellar environment formed by globular clusters frictionally decayed and tidally destroyed by the gravitational field of central black hole (b.h.), is strongly supported in. The quantity of star mass swallowed by the b.h. and its time rate seem at all compatible with those needed to justify the intensity and time characteristics of galactic nuclei activity (see also).