Annihilations from the Galactic Centre
Astrophysics
2016-11-03 v1 High Energy Physics - Phenomenology
Abstract
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.
Cite
@article{arxiv.astro-ph/0011553,
title = {Annihilations from the Galactic Centre},
author = {G. Bertone and G. Sigl and J. Silk},
journal= {arXiv preprint arXiv:astro-ph/0011553},
year = {2016}
}
Comments
7 pages, 3 figures, contribution to the proceedings of the 3rd International Workshop on the Identification of Dark Matter (IDM2000) in York, in press