New insights on hadron acceleration at supernova remnant shocks
Abstract
We outline the main features of nuclei acceleration at supernova remnant forward shocks, stressing the crucial role played by self-amplified magnetic fields in determining the energy spectrum observed in this class of sources. In particular, we show how the standard predictions of the non-linear theory of diffusive shock acceleration has to be completed with an additional ingredient, which we propose to be the enhanced velocity of the magnetic irregularities particles scatter against, to reconcile the theory of efficient particle acceleration with recent observations of gamma-ray bright supernova remnants.
Keywords
Cite
@article{arxiv.1302.0016,
title = {New insights on hadron acceleration at supernova remnant shocks},
author = {Damiano Caprioli},
journal= {arXiv preprint arXiv:1302.0016},
year = {2015}
}
Comments
7 pages, 2 figures. To apper in "Cosmic-ray induced phenomenology in star-forming environments: Proceedings of the 2nd Session of the Sant Cugat Forum of Astrophysics" (April 16-19, 2012), Olaf Reimer and Diego F. Torres (eds.)