Speaker
Ms
Maja Llena Garde
(Oskar Klein Centre, Stockholm University)
Description
Dwarf spheroidal galaxies are considered very promising targets for dark matter searches in the gamma-ray band due to their large mass-to-light ratio and low astrophysical background. The gamma-ray signal is expected to be very faint, but a combined analysis of a set of dwarf galaxies improves the Fermi-LAT sensitivity to gamma-ray sources and yields enhanced constraints on the dark matter parameter space. From a combined analysis of Fermi-LAT data for 10 dwarf spheroidal galaxies, we derive robust constraints on the dark matter annihilation cross section for multiple channels, while accounting for statistical uncertainties in the astrophysical properties.
Primary author
Ms
Maja Llena Garde
(Oskar Klein Centre, Stockholm University)
Co-authors
Prof.
Jan Conrad
(Oskar Klein Centre, Stockholm University)
Dr
Johann Cohen-Tanugi
(Universite ́ Montpellier 2)
