Assessing the signatures imprinted by star-forming galaxies in the cosmic gamma-ray background
Assessing the signatures imprinted by star-forming galaxies in the cosmic gamma-ray background
In recent years, $\gamma$-ray emission has been detected from star-forming galaxies (SFGs) in the local universe, including M82, NGC 253, Arp 220 and M33. The bulk of this emission is thought to be of hadronic origin, arising from the interactions of cosmic rays (CRs) with the interstellar medium of their …