ON PARTICLE ACCELERATION IN ROTATING AGN FLOWS

摘要

Internally rotating jets are expected to be present in a number of astrophysical sources including AGNs. Here we consider the acceleration of energetic charged particles within such flows and discuss the role of shear and centrifugal effects for efficient particle energization. We show that in the case of significant rotation, centrifugal effects could play an important role and facilitate efficient acceleration near the spine of the jet. We point out that shear acceleration could be particularly interesting in the context of hadronic models.