Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21911203y&link_type=abstract
American Astronomical Society, AAS Meeting #219, #112.03
Astronomy and Astrophysics
Astronomy
Scientific paper
Over the last two decades radio continuum observations of the Galactic center region have revealed a large number of nonthermal radio filaments within the inner two degrees of the Galactic center. Theoretically, it has been challenging to understand the nature of these filaments which appear not to be accompanied by any obvious source of acceleration of charged particles to high energy relativistic energies. WIMPs have been considered as an explanation for observations indicating non-baryonic matter density peaking at the Galactic center. Here,we propose that the electrons and positrons created through the annihilation of a relatively light ( 5-10 GeV) dark matter particle can provide a reasonable match to the intensity and spectral shape of radio filaments at the Galactic center.
Hooper Dan
Linden Tim
Yusef-Zadeh Farhad
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