http://arxiv.org/abs/1906.12240
We show that the energy required to turbulently amplify magnetic field during cosmic ray (CR) acceleration by shocks extracts energy from the CR and steepens the CR energy spectrum.
A. Bell, J. Matthews and K. Blundell
Mon, 1 Jul 19
31/52
Comments: Accepted for publication in the Monthly Notices of the Royal Astronomical Society