Parametric excitation of the electrostatic whistler and Z mode by auroral kilometric radiation
Journal Article
·
· Journal of Geophysical Research
- Cornell Univ., Ithaca, NY (United States)
By using a two-dimensional magnetized electron plasma simulation model it is found that an X mode which is presumed to be the dominant component of auroral kilometric radiation can parametrically decay into an electrostatic whistler and a Z mode. The electrostatic whistler grows to large amplitude, and the associated parallel electric field accelerates electrons to several kiloelectron volts. It is proposed that this mechanism is a possible origin of Z mode radiation, broadband electrostatic noise, and energetic parallel electron beams. 34 refs., 11 figs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 233072
- Journal Information:
- Journal of Geophysical Research, Journal Name: Journal of Geophysical Research Journal Issue: A7 Vol. 98; ISSN JGREA2; ISSN 0148-0227
- Country of Publication:
- United States
- Language:
- English
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