タイトル | Grad E x B effects on heavy ions in the magnetosphere |
著者(英) | Aggson, T. L.; Cole, K. D. |
著者所属(英) | NASA Goddard Space Flight Center |
発行日 | 1976-01-01 |
言語 | eng |
内容記述 | Following a theory briefing on the currents in a plasma of mixed species caused by the motion of charged particles, the paper presents a report on the observations of regions of the magnetosphere in which significant values of grad E (E being the electric field) can be inferred from measurements of E made on board the IMP 6 satellite using two pairs of long (91.5 m and 45.7 m) unfurlable antenna sensors. Electric fields were measured by applying double floating probe techniques to the antenna sensors, and grad E values of up to 1.4/1000 emu were inferred from the fluctuations in E along the orbit. The critical values of grad E for various ions, in a range of magnetic fields are compared, and the difference in the behavior of Ba+ ions which cause Ba+ currents in the subcritical and supercritical regions is discussed. The results show that the electric currents flowing in the E x B direction may cause secondary polarization fields on the barium cloud. The possible significance of these effects to natural geophysical phenomena is also pointed out. |
NASA分類 | GEOPHYSICS |
レポートNO | 77A24048 |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/439008 |
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