Indirect Search for Dark Matter with Fermi from the Galactic Center

Astronomy and Astrophysics – Astrophysics

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Gamma-Ray, Dark Matter, Galactic Center, Bar, Circumnuclear Matter, And Bulge

Scientific paper

The Fermi Gamma-Ray Satellite, previously known as GLAST, is in orbit since June 2008. After a commissioning period it is now delivering data. The Large Area Telescope (LAT), onboard of Fermi, is the most sensitive gamma-ray detector to date, in the 20 MeV-300 GeV energy band. It provides a large effective collection area (>8000 cm2 at 1 GeV), a wide field of view (>2 sr) and a good energy resolution (8% at 1 GeV). Fermi data can be used for the indirect search for annihilating Dark Matter (DM). One of the possible observation strategy is the targeting of regions where high Dark Matter density is foreseen, such as the Galactic Center. The observation of the Galactic Center poses a challenge: to disentangle the possible Dark Matter signal from the bright gamma radiation of astrophysical sources. A review on this search will be given.

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