Speaker
Dr
Giulia Pagliaroli
(Gran Sasso Science Institute)
Description
The distribution of cosmic rays in the Galaxy at energies above few TeVs is still
uncertain and this affects the expectations for the diuse gamma flux produced by hadronic interactions of cosmic rays with the interstellar gas. We show that the TeV gamma-ray sky
can provide interesting constraints. Namely, we compare the flux from the galactic plane measured by Argo-YBJ, HESS, HAWC and Milagro with the expected flux due to diffuse emission and point-like and extended sources observed by HESS showing that experimental data can already discriminate among different hyphoteses for cosmic ray distribution. The constraints can be strengthened if the contribution of sources not resolved by HESS is taken into account.
Primary author
Dr
Giulia Pagliaroli
(Gran Sasso Science Institute)
Co-authors
Prof.
Francesco Lorenzo Villante
(University of L'Aquila)
Maddalena Cataldo
(University of L'Aquila)
Vittoria Vecchiotti
(Gran Sasso Science Institute)
