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arXiv · 1207.1468

Searching for the continuum spectrum photons correlated to the 130 GeV gamma-ray line

Ilias Cholis·Maryam Tavakoli·Piero Ullio
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Abstract

Indications for a gamma-ray line(s) signal towards the Galactic center at an energy of about 130 GeV have been recently presented. While dark matter annihilations are a viable candidate for this signal, it is generally expected that such a flux would be correlated to a gamma-ray component with continuum energy spectrum due to dark matter pair annihilating into other Standard Model particles. We use the gamma-ray data from the inner 10 x 10 degree window to derive limits for a variety of DM annihilation final states. Extending the window of observation, we discuss bounds on the morphological shape of a dark matter signal associated to the line, applying both standard templates for the dark matter profile, such as an Einasto or a NFW profile, and introducing a new more general parametrization.

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Ilias Cholis, Maryam Tavakoli, Piero Ullio. 2012-11-14. Searching for the continuum spectrum photons correlated to the 130 GeV gamma-ray line. https://doi.org/10.1103/physrevd.86.083525

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