The propagation and growth of whistler mode waves generated by electron beams in earth's bow shock

Details The propagation and growth of whistler mode waves generated by electron beams in earth's bow shock The propagation and growth of whistler mode waves generated by electron beams in earth's bow shock

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90..105t&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Jan. 1, 1985, p. 105-114. Previously announced in STAR as N85-11492.

Physics

18

Bow Waves, Earth Magnetosphere, Electron Beams, Extremely Low Radio Frequencies, Wave Propagation, Whistlers, Cyclotron Resonance, Earth (Planet), Magnetosheath, Magnetospheric Electron Density, Plasma Sheaths, Propagation Modes

Scientific paper

In this study, the propagation and growth of whistler mode waves generated by electron beams within earth's bow shock is investigated using a planar model for the bow shock and a model electron distribution function. Within the shock, the model electron distribution function possesses a field-aligned T greater than T beam that is directed toward the magnetosheath. Waves with frequencies between about 1 and 100 Hz with a wide range of wave normal angles are generated by the beam via Landau and anomalous cyclotron resonances. However, because the growth rate is small and because the wave packets traverse the shock quickly, these waves do not attain large amplitudes. Waves with frequencies between about 30 and 150 Hz with a wide range of wave normal angles are generated by the beam via the normal cyclotron resonance. The ray paths for most of these waves are directed toward the solar wind although some wave packets, due to plasma convection travel transverse to the shock normal. These wave packets grow to large amplitudes because they spend a long time in the growth region. The results suggest that whistler mode noise within the shock should increase in amplitude with increasing upstream theta sub Bn. The study provides an explanation for the origin of much of the whistler mode turbulence observed at the bow shock.

Affiliated with

Also associated with

No associations

Rating

The propagation and growth of whistler mode waves generated by electron beams in earth's bow shock 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 The propagation and growth of whistler mode waves generated by electron beams in earth's bow shock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The propagation and growth of whistler mode waves generated by electron beams in earth's bow shock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-926871