Physics
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991georl..18...53r&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 18, Jan. 1991, p. 53-56.
Physics
5
Current Sheets, Cyclotron Radiation, Geomagnetic Tail, Harmonic Radiation, Plasma Layers, Plasma Radiation, Space Plasmas, Electric Fields, Electromagnetic Fields, Emission Spectra, Harmonic Oscillation, Ion Beams, Narrowband
Scientific paper
Electric field wave observations in the central plasma sheet show the correlated occurrence of broadband electrostatic noise and electrostatic electron cyclotron harmonic emissions. A model is proposed in which the broadband emissions are electron acoustic waves generated by an observed low energy electron beam, and the cyclotron emissions are generated by the hot electron loss cone instability. The high degree of correlation between the two emissions is provided in the model by the presence of the cold electron beam population, which allows both of the plasma instabilities to grow.
Anderson Rachel
Angelopoulos Vassilis
Baumjohann Wolfgang
Roeder James L.
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