Theory of ion injection at shocks.

Details Theory of ion injection at shocks. Theory of ion injection at shocks.

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...300..605m&link_type=abstract

Astronomy and Astrophysics, v.300, p.605

Astronomy and Astrophysics

Astrophysics

75

Shock Waves, Acceleration Of Particles, Cosmic Rays

Scientific paper

We have extended the theory of diffusive particle acceleration at parallel shocks to the low energy end where the spectrum matches the thermal plasma. The standard theory ceases to work in this region due to the high anisotropy of the distribution function, and replaces the kinetics of the particles there by a crude parameterization which is commonly referred to as "injection". We develop an analytical formalism, which treats injection in terms of thermal particles leaking from downstream and recrossing the shock front until they have gained energies acceptable for the standard description. This allows one to relate the injection rate to the hydrodynamic parameters of the subshock. In a quasilinear description the upstream pitch angle scattering of ions, not of electrons, is provided by the unstable growth of MHD waves due to the presence of the "warm beam" of ions, leaking from the downstream plasma.

Affiliated with

Also associated with

No associations

Rating

Theory of ion injection at shocks. 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 Theory of ion injection at shocks., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of ion injection at shocks. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1265859