Stochastic Electron Acceleration in Shell-Type Supernova Remnants
Abstract
We study the stochastic electron acceleration by fast-mode waves in the turbulent downstream of weakly magnetized collisionless astrophysical shocks. The acceleration is most efficient in a dissipative layer, and the model characteristics are determined by the shock speed, density, magnetic field, and turbulence decay length. The model explains observations of shell-type supernova remnants RX J1713.7-3946 and J0852.0-4622 and can be tested by observations in hard X-rays with the HXMT and NuSTAR or γ-rays with GLAST.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 2008
- DOI:
- 10.1086/591793
- arXiv:
- arXiv:0805.2589
- Bibcode:
- 2008ApJ...683L.163L
- Keywords:
-
- acceleration of particles;
- MHD;
- plasmas;
- shock waves;
- turbulence;
- Astrophysics
- E-Print:
- 12 pages, 2 figures, Accepted by ApJL