Observations of correlated broadband electrostatic noise and electron cyclotron emissions in the plasma sheet
Article first published online: 7 DEC 2012
Copyright 1991 by the American Geophysical Union.
Geophysical Research Letters
Volume 18, Issue 1, pages 53–56, January 1991
How to Cite
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 10 SEP 1990
- Manuscript Received: 17 AUG 1990
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.