Journal
ASTROPARTICLE PHYSICS
Volume 33, Issue 5-6, Pages 307-311Publisher
ELSEVIER
DOI: 10.1016/j.astropartphys.2010.03.001
Keywords
Acceleration of particles; Shock waves; Cosmic rays; Escape flux
Funding
- MIUR [2006]
- ASI [ASI-INAF I/088/06/0]
- National Science Foundation [PHY05-51164]
Ask authors/readers for more resources
We present here a semi-analytical solution of the problem of particle acceleration at non-linear shock waves with a free-escape boundary at some location upstream. This solution, besides allowing us to determine the spectrum of particles accelerated at the shock front, including the shape of the cutoff at some maximum momentum, also allows us to determine the spectrum of particles escaping the system from upstream. This latter aspect of the problem is crucial for establishing a connection between the accelerated particles in astrophysical sources, such as supernova remnants, and the cosmic rays observed at the Earth. An excellent approximate solution, which leads to a computationally fast calculation of the structure of shocks with an arbitrary level of cosmic ray modification, is also obtained. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available