The 2nd LHAASO Symposium

Terzan 5 is the most luminous Galactic globular cluster in the Fermi band. Uniquely amongst globular clusters, it also has an associated TeV band source (HESS Collaboration, 2011). Strangely, however, the centroid of this extended TeV source is appreciably offset from the cluster itself by about 8 pc. We show that this displacement is naturally explained by cosmic ray electrons accelerated in...

Gamma-ray observations provide important information on cosmic-ray (CR)
propagation in our Galaxy.
First, we present a new model of CR propagation in the Milky Way, where
CRs are injected at discrete transient sources in the disc. We then
calculate the corresponding diffuse Galactic gamma-ray emission. We find
that the diffuse gamma-ray emission at >~ 100 TeV is very clumpy, and
does not...