Speaker
Frank Rieger
(MPIK and Univ. of Heidelberg)
Description
The non-thermal radiation seen from astrophysical objects bears
witness to the presence of energetic charged particles that have
experienced efficient acceleration within these sources.
Shear flows are naturally expected in many of these environments.
Combined with new observational results in the radio and high energy
gamma-ray domain and with progress in our understanding of turbulence
modelling, this has given fresh impetus to shear acceleration
and emission scenarios.
Here we will review key results concerning the stochastic acceleration
of energetic electrons and protons in gradual shear flows, highlight
expected spectral characteristics and report on recent applications in
the context of expanding relativistic outflows.
Author
Frank Rieger
(MPIK and Univ. of Heidelberg)
