Journal article
Plasma waves associated with diffuse auroral electrons at mid-altitudes
Advances in space research, Vol.8(9-10), pp.447-452
01/01/1988
DOI: 10.1016/0273-1177(88)90159-7
Abstract
Using simultaneous observations from the DE-1 High-Altitude Plasma Instrument and the Plasma Wave Instrument, a study is made of 28 auroral-zone crossings, equally divided among dayside and nightside cases covering a range of Kp values from 1- to 8. In the diffuse auroral region, electrostatic emissions of frequencies up to a few kHz are associated with low-energy field-aligned electron beams. Of 18 cases (11 nightside; 7 dayside) examined at high resolution in the particle data, 15 (9 nightside; 6 dayside) exhibited field-aligned beams with electrostatic waves. In most cases, the beams were upward-directed, but occasionally they traveled both up and down the field line. The electrostatic emissions are interpreted as electron-acoustic waves excited by the field-aligned beams.
Details
- Title: Subtitle
- Plasma waves associated with diffuse auroral electrons at mid-altitudes
- Creators
- J. R. Sharber - Southwest Research InstituteJ. D. Menietti - Southwest Research InstituteH. K. Wong - Southwest Research InstituteJ. L. Burch - Southwest Research InstituteD. A. Gurnett - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Advances in space research, Vol.8(9-10), pp.447-452
- DOI
- 10.1016/0273-1177(88)90159-7
- ISSN
- 0273-1177
- eISSN
- 1879-1948
- Language
- English
- Date published
- 01/01/1988
- Description audience
- PUBLIC
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627340402771
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