Journal article
Cold torus whistlers : An indirect probe of the inner Jovian plasmasphere
Journal of geophysical research, Vol.103(A7), pp.14987-14994
07/01/1998
DOI: 10.1029/98JA00965
Abstract
The dominant features of Jovian whistlers observed by Voyager 1 in the inner cold torus around RJ ≈ 5.3 are studied using the technique of ray tracing with an offset tilted dipole. These whistlers are unducted, and the electron density in the inner plasmasphere plays a controlling role in the access of whistlers to the cold torus. The upper frequency cutoff of inner zone whistlers allows a firm limit to be placed on the minimum electron density 3–5 cm−3 at higher latitudes in the inner plasmasphere around L ≈ 5.3, a region where no spacecraft have ever been. Backward ray tracing from the observation location is used to determine the source location at the top of the Jovian atmosphere, and it is shown to be consistent with the latitude of lightning events observed by Voyager 1.
Details
- Title: Subtitle
- Cold torus whistlers : An indirect probe of the inner Jovian plasmasphere
- Creators
- K Wang - University of California, Los AngelesR. M Thorne - University of California, Los AngelesR. B Horne - British Antarctic SurveyW. S Kurth - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of geophysical research, Vol.103(A7), pp.14987-14994
- DOI
- 10.1029/98JA00965
- ISSN
- 0148-0227
- eISSN
- 2156-2202
- Publisher
- American Geophysical Union
- Language
- English
- Date published
- 07/01/1998
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984455581102771
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