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Annihilations from the Galactic Centre

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 نشر من قبل Gianfranco Bertone
 تاريخ النشر 2000
  مجال البحث فيزياء
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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.



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