Monday
29 March, 2:30 pm, Curia II
Edward Baltz
(KIPAC, Stanford)
@: eabaltz AT
SLAC.Stanford.EDU
Diffuse emission from annihilations in
galactic satellites
Annihilating dark matter particles
produce roughly as much power in
electrons and positrons as in gamma
ray photons. The charged particles
lose essentially all of their energy
to inverse Compton and synchrotron
processes in the galactic
environment. We discuss the diffuse signature
of dark matter annihilations in
satellites of the Milky Way (which may
be optically dark with few or no
stars), providing a tail of emission
trailing the satellite in its
orbit. Inverse Compton processes provide
X-rays and gamma rays, and synchrotron
emission at radio wavelengths
might be seen. We discuss the
possibility of detecting these signals
with current and future observations,
in particular EGRET and GLAST for
the gamma rays.