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2012

Gamma-ray Lines in the Fermi Data: is it a Bubble?

Profumo, Stefano, Linden, Tim

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Recently, tentative evidence for an excess of gamma rays at energies around 130 GeV has been reported from analyses of data from the Fermi Large Area Telescope (LAT).

The excess is potentially of great interest, as it could be associated with the pair-annihilation of Galactic dark matter and the subsequent production of monochromatic or internal bremsstrahlung gamma rays.
The 130 GeV excess appears when an optimized selection of the target region of interest is employed, a procedure that depends upon the assumed dark matter density profile.
For the profiles producing an appreciable signal, these target regions vastly overlap with the region corresponding to the so-called "Fermi bubbles".

Gamma-ray Lines in the Fermi Data: is it a Bubble? · Around

Built on

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M. Gorchtein, S. Profumo, and L. Ubaldi, Probing Dark Matter with AGN Jets
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2010
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A. Abdo, M. Ackermann, M. Ajello, W. Atwood, L. Baldini, et. al
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2010
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M. Su, T. R. Slatyer, and D. P. Finkbeiner, Giant Gamma-ray Bubbles from Fermi-LAT: AGN Activity or Bipolar Galactic Wind?
Original
2010
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The Fermi-LAT collaboration
Original
2010
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