Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-11-29
Astronomy and Astrophysics
Astrophysics
7 pages, 3 figures, contribution to the proceedings of the 3rd International Workshop on the Identification of Dark Matter (ID
Scientific paper
A massive black hole is present at the centre of our galaxy and inevitably accretes dark matter particles, creating a region of very high particle density. The annihilation rate is enhanced with a large number of e+e- pairs produced either directly or by successive decays of mesons. We evaluate the synchrotron emission (and self-absorption) associated with the propagation of these particles through the galactic magnetic field and give constraints on the values of mass and cross section of the dark matter particles.
Bertone Gianfranco
Sigl Guenter
Silk Joseph
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