June 30, 2014 to July 25, 2014
JGU Campus, Mainz
Europe/Berlin timezone

Dark matter, black holes, and the Fermi GeV excess

Jul 18, 2014, 10:30 AM
MITP seminar room (JGU Campus, Mainz)

MITP seminar room

JGU Campus, Mainz


Jessie Shelton


The excess of GeV-scale photons observed by the Fermi telescope in the direction of the Galactic Centre is strikingly similar in both rate and spatial distribution to the expectations for annihilating dark matter. I'll discuss dark matter models that can reconcile the Fermi signal with the lack of signals from direct detection and collider experiments. If the Fermi signal is indeed due to dark matter, then the Milky Way's super-massive black hole should give rise to an additional point-source like contribution to the gamma ray signal. The canonical expectation for this point-like source is incompatible with Fermi measurements of the Galactic Centre, and I'll talk about possible astrophysical and particle consequences of this observation.

Presentation materials