Journal article
Enhanced whistler-mode emissions: Signatures of interchange motion in the Io torus
Geophysical research letters, Vol.24(17), pp.2123-2126
09/01/1997
DOI: 10.1029/97GL02020
Abstract
During the Galileo inbound pass through the Io torus the plasma wave instrument detected intervals of enhanced whistler-mode emissions. Over two of these intervals in the inner torus (L < 6.5), for which energetic particle data is also available, the flux and pitch angle anisotropy of resonant electrons exhibited a simultaneous enhancement consistent with inward adiabatic transport from a source region in the outer torus. The enhanced electromagnetic emissions are interpreted as a modulation of cyclotron whistler-mode instability above the normal marginally stable state of the plasma. This suggests that the enhanced emissions are a sensitive indicator of rapid inward transport associated with interchange motions in the Io torus.
Details
- Title: Subtitle
- Enhanced whistler-mode emissions: Signatures of interchange motion in the Io torus
- Creators
- S. J. Bolton - Jet Propulsion LaboratoryR. M. Thorne - University of California, Los AngelesD. A. Gurnett - University of IowaW. S. Kurth - University of IowaD. J. Williams - Johns Hopkins University Applied Physics Laboratory
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.24(17), pp.2123-2126
- DOI
- 10.1029/97GL02020
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Publisher
- Blackwell Publishing Ltd
- Number of pages
- 4
- Language
- English
- Date published
- 09/01/1997
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984455547802771
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