Journal article
Jovian decametric arcs - An estimate of the required wave normal angles from three-dimensional ray tracing
Journal of Geophysical Research, Vol.89(A10), pp.9089-9094
10/01/1984
DOI: 10.1029/ja089ia10p09089
Abstract
Three-dimensional ray tracing is applied to an analysis of variable radio wave normal angle effects on the associated decametric (DAM) arc structures in the Jovian magnetosphere. The analysis is bed on 1-40 MHz radio signature recorded during Voyage 1 and 2 passages. The frequencies considered are above the R-X cut-off, and several ratios of the emission frequency/source frequency. The ray tracing code is based on a cold plasma formula and integration of the Hasselgrove (1955) equations. It is assumed that the emission is in the R-X mode, the source lies at the foot of an Io flux tube, and the emission cone is hollow. Attention is focused on data for two intense, vertex-late, high curvature DAM arc. A possible source for the arcs is found to be doppler-shifted gyroemission from a beam of electrons with an energy of 10 keV. A value of 1.1 is set as the limit of the doppler shift of the DAM emissions.
Details
- Title: Subtitle
- Jovian decametric arcs - An estimate of the required wave normal angles from three-dimensional ray tracing
- Creators
- J. D. Menietti - Southwest Research InstituteJ. L. Green - Marshall Space Flight CenterS. Gulkis - Jet Propulsion LaboratoryN. F. Six - University of Puerto Rico at Arecibo
- Resource Type
- Journal article
- Publication Details
- Journal of Geophysical Research, Vol.89(A10), pp.9089-9094
- DOI
- 10.1029/ja089ia10p09089
- ISSN
- 0148-0227
- eISSN
- 2156-2202
- Language
- English
- Date published
- 10/01/1984
- Description audience
- PUBLIC
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627205302771
Metrics
1 Record Views