Ultra-high-energy ${\hat{I}}^3$-ray imprints from PeV particles accelerated by supernova remnants

Zhen Cao, F. Aharonian, Y. X. Bai +320

The quest for the origin of cosmic ray (CRs) is a fundamental issue in astrophysics. Shocks of supernova remnants (SNRs) have been considered as the dominant contributors to Galact…