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Radio and gamma-ray constraints on dark matter annihilation in the Galactic center

Crocker, Roland; Bell, Nicole F.; Balazs, Csaba; Jones, David I


We determine upper limits on the dark matter (DM) self-annihilation cross section for scenarios in which annihilation leads to the production of electron-positron pairs. In the Galactic center, relativistic electrons and positrons produce a radio flux via synchroton emission, and a gamma-ray flux via bremsstrahlung and inverse Compton scattering. On the basis of archival, interferometric and single-dish radio data, we have determined the radio spectrum of an elliptical region around the...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Physical Review D-Particles, Fields, Gravitation and Cosmology
DOI: 10.1103/PhysRevD.81.063516


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