Gamma-ray and radio tests of the e± excess from DM annihilations

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Published 5 March 2009 Published under licence by IOP Publishing Ltd
, , Citation Gianfranco Bertone et al JCAP03(2009)009 DOI 10.1088/1475-7516/2009/03/009

1475-7516/2009/03/009

Abstract

PAMELA and ATIC recently reported an excess in e± cosmic rays. We show that if it is due to Dark Matter annihilations, the associated gamma-ray flux and the synchrotron emission produced by e± in the galactic magnetic field violate HESS and radio observations of the galactic center and HESS observations of dwarf spheroidals, unless the DM density profile is significantly less steep than the benchmark NFW and Einasto profiles.

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10.1088/1475-7516/2009/03/009