Proper motion of gamma rays from microhalo sources.
I discuss the prospects of detecting the smallest dark matter bound structures present in the Milky Way by searching for the proper motion of gamma-ray sources in the upcoming Gamma Ray Large Area Space Telescope all sky map. I show that for dark matter particle candidates that couple to photons the detection of at least one gamma-ray microhalo source with proper motion places a constraint on the couplings and mass of the dark matter particle.
Koushiappas
Savvas M
SM
T-6, Theoretical Division, and ISR-1, ISR Division, MS B227, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. smkoush@lanl.gov