Cosmic ray transport in MHD turbulence

Details Cosmic ray transport in MHD turbulence Cosmic ray transport in MHD turbulence

2005-05-28

arxiv.org/abs/astro-ph/0505575v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures, proceeding of Texas Symposium, 2004

Scientific paper

Recent advances in understanding of magnetohydrodynamic (MHD) turbulence call for revisions in the picture of cosmic ray transport. In this paper we use recently obtained scaling laws for MHD modes to obtain the scattering frequency for cosmic rays. We account for the turbulence cutoff arising from both collisional and collisionless damping. We obtain the scattering rate and show that fast modes provide the dominant contribution to cosmic ray scattering for the typical interstellar conditions in spite of the fact that fast modes are subjected to damping. We determine how the efficiency of the scattering depends on the characteristics of ionized media, e.g. plasma $\beta$. We show that streaming instability is suppressed by the ambient MHD turbulence.

Affiliated with

Also associated with

No associations

Rating

Cosmic ray transport in MHD turbulence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmic ray transport in MHD turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic ray transport in MHD turbulence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-690515