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dc.contributor.advisor Cloutier, Paul A.
dc.creatorDaniell, Robert Edward
dc.date.accessioned 2018-12-18T21:15:22Z
dc.date.available 2018-12-18T21:15:22Z
dc.date.issued 1974
dc.identifier.urihttps://hdl.handle.net/1911/103927
dc.description.abstract A model for the direct interaction of the solar wind with the atmosphere of a non-magnetic planet is reviewed. In this model the magnetized solar wind acts as a dynamo and induces currents in the planetary ionosphere. A model for the dynamo mechanism is developed and used to calculate current distributions on Mars and Venus. The requirement that these currents be of such a magnitude as to exclude the shock-compressed interplanetary magnetic field from the ionosphere determines the position of the ionopause. The ionopause altitude so calculated depends on the specific model atmosphere adopted for the calculations. For Mars, an ionopause altitude at the subsolar point is predicted to be in the range 3 km to 45 km. No ionopause has yet been observed on Mars. For Venus, the range is 35 km to 7 km which is compatible with the plasmapause observed at 5 km by Mariner 5. The addition of photoions to the solar wind flow is important to the overall interaction model since the mass fraction added to the solar wind flow cannot exceed a certain critical value. The total rate of addition of ions to the flow and the distribution of these ions in the planet's wake are calculated. Mass loss rates of 8 gm/sec for Mars and 12 gm/sec for Venus are found, and these are in reasonable agreement with loss rates calculated from gas dynamic arguments (Michel, 1971). Additional aeronomical effects of the solar wind interaction are also considered.
dc.format.extent 80 pp
dc.language.iso eng
dc.title The electrodynamics of the direct interaction of the solar wind with the atmospheres of non-magnetic planets
dc.identifier.digital RICE1553
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Space Physics and Astronomy
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Science
dc.format.digitalOrigin reformatted digital
dc.identifier.callno Thesis Sp. Sci. 1974 Daniell
dc.identifier.citation Daniell, Robert Edward. "The electrodynamics of the direct interaction of the solar wind with the atmospheres of non-magnetic planets." (1974) Master’s Thesis, Rice University. https://hdl.handle.net/1911/103927.


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