Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| Title | Theory of the Io phase asymmetry of the Jovian decametric radiation |
| Creator/Author | Hashimoto, K. ; Goldstein, M.L. |
| Publication Date | 1983 Mar 01 |
| OSTI Identifier | OSTI ID: 6302175 |
| Other Number(s) | CODEN: JGREA |
| Resource Type | Journal Article |
| Resource Relation | J. Geophys. Res. ; Vol/Issue: 88:A3 |
| Research Org | Laboratory for Extraterrestrial Physics, Interplanetary Physics Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771 |
| Subject | 640107 -- Astrophysics & Cosmology-- Planetary Phenomena; ;JUPITER PLANET-- RADIOWAVE RADIATION; ALFVEN WAVES;FREQUENCY DEPENDENCE;MAGNETIC FIELDS;PLANETARY IONOSPHERES;SATELLITES;WAVE PROPAGATION |
| Related Subject | ELECTROMAGNETIC RADIATION;HYDROMAGNETIC WAVES;PLANETS;RADIATIONS |
| Description/Abstract | We propose an explanation of an asymmetry in the occurrence probability of the Io-dependent Jovian decametric radiation.^We find that this asymmetry arises because when Io is in the northern part of the torus, more intense Alfven waves are generated propagating southward than northward.^These waves then cause the excitation of decametric radiation in the northern ionosphere after reflection from the southern ionosphere.^The asymmetry then results from the propagation time of the Alfven wave and the bending of the magnetic field (Alfven wing) along this trajectory.^The ray paths of the decametric radiation are calculated using a three-dimensional ray-tracing program in the Jovian ionosphere.^Variations in the expected probability plots are computed for two models of the Jovian ionosphere and global magnetic field, as well as for several choices of the ratio of the radiated frequency to the X mode cutoff frequency.^The dependence of the occurrence probability on the Jovian declination of the earth is also discussed in the context of this model. |
| Country of Publication | United States |
| Language | English |
| Format | Pages: 2010-2020 |
| System Entry Date | 2001 May 13 |
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