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A dawn to dusk electric field in the jovian magnetosphere
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ip, W. I. Goertz, C. K. |
| Copyright Year | 1983 |
| Description | It is shown that if Io-injected plasma is lost via a planetary wind-fixed Birkeland current system may result. This is due to the fact that the azimuthal centrifugal current flows across a density gradient produced by the loss of plasma through the planetary wind in the tail. The divergent centrifugal current is connected to field-aligned Birkeland currents which flow into the ionosphere at dawn and out of it at dusk. The closure currents in the ionosphere require a dawn to dusk electric field which at the orbit of Io is estimated to have a strength of 0.2 mV/m. However, the values of crucial parameters are not well known and the field at Io's orbit may well be significantly larger. Independent estimates derived from the local time asymmetry of the torus UV emission indicate a field of 1.5 mV/m. |
| File Size | 957074 |
| Page Count | 34 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840010068 |
| Archival Resource Key | ark:/13960/t1zd2rn08 |
| Language | English |
| Publisher Date | 1983-03-01 |
| Access Restriction | Open |
| Subject Keyword | Lunar And Planetary Exploration Field Aligned Currents Jupiter Atmosphere Space Plasmas Sunset Birkeland Currents Planetary Ionospheres Planetary Magnetic Fields Diurnal Variations Sunrise Electric Fields Solar Wind Planetary Magnetospheres Electric Current Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
