Wave-particle interaction and peculiarities of propagation and emission of accelerated particles in solar flares

Details Wave-particle interaction and peculiarities of propagation and emission of accelerated particles in solar flares Wave-particle interaction and peculiarities of propagation and emission of accelerated particles in solar flares

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd...1e..44s&link_type=abstract

Cosmic Particle Acceleration, 26th meeting of the IAU, Joint Discussion 1, 16-17 August, 2006, Prague, Czech Republic, JD01, #44

Physics

Plasma Physics

Scientific paper

Consequences of wave-particle interaction in the propagation and emission of accelerated particles in solar flares are considered. i. Strong diffusion energetic particles on small-scale waves (Trakhtengerts 1984) gives time delays of gamma ray line emission vs hard X-ray emission when electron and protons are accelerated simultaneously. ii. Anomalous propagation of relativistic electrons along the flare loop with velocity of 30 times less compared with light velocity (Yokoyama et al 2002) is explained in terms of the collective effects of interaction of electrons with plasma turbulence. A cloud of high-energetic electrons responsible for microwave emission generates whistler waves and a turbulent "wall" in the loop is formed. The electrons undergo strong resonant scattering and the emission front propagates with the wave phase velocity, which is much lower than particle velocity. iii. Absence of linear polarization (≤ 0.07%) in Hα emission of some flares (Bianda et al 2005) is interpreted in terms of pitch-angle scattering of proton beams on small-scale Alfven waves. References Bianda M., Benz F.O., Stenflo J.O. et al 2005, A&A, 434, 1183 Trakhtengerts V.Yu. 1984, Relaxation of Plasma with Anisotropic Velocity Distribution, in A.A.Galeev and R.N.Sudan (eds.) Basic Plasma Physics II, North-Holland Physics Publishing Yokoyama T., Nakajima H., Shibasaki K, et al. 2002, ApJ, 576, L87

Affiliated with

Also associated with

No associations

Rating

Wave-particle interaction and peculiarities of propagation and emission of accelerated particles in solar flares 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 Wave-particle interaction and peculiarities of propagation and emission of accelerated particles in solar flares, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wave-particle interaction and peculiarities of propagation and emission of accelerated particles in solar flares will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1781598