Jul 26 – 30, 2010
Montpellier 2 University
Europe/Paris timezone

Fermi-LAT constraints on diffuse Dark Matter annihilation from the Galactic Halo

Jul 30, 2010, 10:35 AM
Salle des Actes (Montpellier 2 University)

Salle des Actes

Montpellier 2 University

Place Eugene Bataillon, 34095 Montpellier Cedex 5 FRANCE


Brandon Anderson (University of California - Santa Cruz)


Our Galaxy resides in the center of a vast "Halo" of Dark Matter (DM). This concentra- tion produces, in many viable particle physics models, an indirect Weakly Interacting Massive Particle (WIMP) annihilation signal that peaks in the Fermi-LAT's energy range. Our knowledge of the diffuse background is essential to placing reasonable limits on the DM mass and cross-section. We incorporate a systematic variation of the GALPROP galactic diffuse background model, constrained by current cosmic-ray measurements, into a profile likelihood analysis and present upper limits on the DM annihilation cross-section using the Fermi-LAT data.

Primary author

Brandon Anderson (University of California - Santa Cruz)

Presentation materials