CIRCUM-GALACTIC GAS AND THE ISOTROPIC GAMMA-RAY BACKGROUND
CIRCUM-GALACTIC GAS AND THE ISOTROPIC GAMMA-RAY BACKGROUND
Interactions of cosmic rays with the interstellar medium in the disk of the Milky Way provide the majority of the diffuse gamma-ray emission observed by the Fermi Gamma-ray Space Telescope. In addition to the gas which is densely concentrated along the galactic plane, hydrodynamical simulations and observational evidence favor the …