Speaker
Dario Grasso
(INFN, Pisa, Italy)
Description
Gamma-rays from pion decay provide a unique tool to probe galactic cosmic rays (CR) and their interaction with the interstellar medium. At the same time, if not well understood, such an emission may be an annoying background for dark matter searching. Therefore, it is necessary
to model it as better as possible. We do that by combining new simulations of the CR propagation with recent observations/models of the gas distribution. Our results apply to the ~ 1 GeV - 100 TeV energy range. We found that in the most dense regions of the Galactic Plane our results are in good agreement with EGRET measurements. Then, we model what GLAST and other observatories may find at higher energies (not considering a possible IC component). We compare our predictions with MILAGRO, TIBET and HESS observations in several regions of the sky, including Cygnus and the the Galactic Centre. Finally, we will also briefly discuss the implication of our finding for neutrino astronomy.
Author
Dario Grasso
(INFN, Pisa, Italy)
