Mechanism for generation of 2-3 kHz radiation beyond the termination shock

Details Mechanism for generation of 2-3 kHz radiation beyond the termination shock Mechanism for generation of 2-3 kHz radiation beyond the termination shock

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aipc..382..617m&link_type=abstract

Proceedings of the eigth international solar wind conference: Solar wind eight. AIP Conference Proceedings, Volume 382, pp. 617

Computer Science

Solar Wind Plasma, Sources Of Solar Wind, Planetary Bow Shocks, Interplanetary Shocks, Electrostatic Waves And Oscillations

Scientific paper

Intensity of radio emissions at 2 to 3 kHz detected by the Voyager plasma wave instrument in the outer heliosphere can possibly be explained provided that the electron beams generating Langmuir waves exist also in the postshock plasma due to secondary shocks in the compressed solar wind beyond the termination shock. The mechanism consists of two steps. First, the beam of energetic electrons generate a high level of electrostatic Langmuir plasma waves. Second, electromagnetic radiation results from the non-linear interaction between Langmuir waves. The field strength of Langmuir waves required to generate the second harmonic emissions are of 50-100 μV m1. These waves may be observed in situ by Voyager in the near future.

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