GAMMA-RAYS FROM MILLISECOND PULSAR POPULATION IN THE GALACTIC CENTRE

Abstract

The central dense stellar cluster in the Galactic Center (GC) contains the mass of ~4 times larger than that of the central black hole. It is expected to be formed as a result of a merging process of several massive globular clusters which provided a large number of millisecond pulsars (MSPs). We propose that the GeV-TeV γ-ray emission observed from GC is in fact a cumulative effect of the emission from several globular clusters captured by the GC black hole. We calculate the expected TeV γ-ray emission produced by leptons, injected by pulsars, by the Inverse Compton Scattering process in the diffusive radiation field. It is shown that this emission can be responsible for the multi-TeV γ-rays observed by the Cherenkov telescopes from GC if about a thousand of MSPs are present in the central cluster in GC.