New aspects of whistler waves driven by an electron beam studied by a 3-D electromagnetic code

Details New aspects of whistler waves driven by an electron beam studied by a 3-D electromagnetic code New aspects of whistler waves driven by an electron beam studied by a 3-D electromagnetic code

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.1019n&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 11, p. 1019-1022

Physics

14

Computerized Simulation, Earth Ionosphere, Electron Beams, Electrons, Electrostatics, Plasmas (Physics), Whistlers, Computer Programs, Spacelab Payloads, Three Dimensional Models

Scientific paper

We have restudied electron beam driven whistler waves with a 3-D electromagnetic particle code. The simulation results show electromagnetic whistler wave emissions and electrostatic beam modes like those observed in the Spacelab 2 electron beam experiment. It has been suggested in the past that the spatial bunching of beam electrons associated with the beam mode may directly generate whistler waves. However, the simulation results indicate several inconsistencies with this picture: (1) whistler waves continue to be generated even after the beam mode space charge modulation looses its coherence, (2) the parallel (to the background magnetic field) wavelength of the whistler wave is longer than that of the beam instability, and (3) the parallel phase velocity of the whistler wave is smaller than that of the beam mode. The complex structure of the whistler waves in the vicinity of the beam suggest that the transverse motion (gyration) of the beam and background electrons is also involved in the generation of whistler waves.

Affiliated with

Also associated with

No associations

Rating

New aspects of whistler waves driven by an electron beam studied by a 3-D electromagnetic code 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 New aspects of whistler waves driven by an electron beam studied by a 3-D electromagnetic code, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New aspects of whistler waves driven by an electron beam studied by a 3-D electromagnetic code will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1865104