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

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

2008-11-24

arxiv.org/abs/0811.3744v3

JCAP 0903:009,2009

Astronomy and Astrophysics

Astrophysics

16 pages, 4 figures; v2: normalizations fixed in Table 2 and typos corrected (no changes in the analysis nor the results), som

Scientific paper

10.1088/1475-7516/2009/03/009

PAMELA and ATIC recently reported an excess in e+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+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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