Constraining Dark Matter models from a Combined Analysis of Dwarf Spheroidal Galaxies with the Fermi Large Area Telescope
Maja Llena-Garde
OKC Stockholm
Dwarf spheroidal galaxies have a large mass to light ratio and low
astrophysical background, and are therefore considered one of the most
promising targets for dark matter searches in the gamma-ray band. The
Fermi-LAT sensitivity to gamma-ray sources can be improved through the use
of a joint likelihood analysis, which in the event of a null detection,
yields enhanced constraints on dark matter parameter space. From a
combined analysis of the Fermi-LAT data for 10 dwarf spheroidal galaxies,
we derive robust constraints on the dark matter annihilation cross section
for multiple channels accounting for astrophysical uncertainties.
Date: | Wednesday, 28 March 2012 |
Time: | 14:30 |
Where: | McGill University |
| Ernest Rutherford Physics Building, R.E. Bell Conference Room (room 103) |
Contact: | Robert Rutledge |
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