Probing Cosmic Accelerators Using VHE Gamma Rays and UHE cosmic rays

摘要

The $\gamma$-ray emission observed in several classes of Galactic andextragalactic astrophysical sources appears to be linked to accreting blackholes and rotational powered neutron stars. These systems are prodigious cosmicaccelerators, and are also potential sources of the UHE cosmic rays detected byseveral experiments and VHE neutrinos. We review a recent progress in ourunderstanding of these objects, and demonstrate how recent and futureobservations can be employed to probe the conditions in the sources.