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Giotto/Cometary dust interaction event near the comet Halley ionopause |
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| Authors: | PL Israelevich AI Ershkovich |
| Institution: | a Department of Geophysics and Planetary Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University Ramat Aviv Israel |
| Abstract: | Plasma and magnetic field disturbances accompanying dust particle impacts are explained by means of creation of a secondary cloud around the spacecraft. Cold cometary ions impinging upon the cloud are scattered by atoms of the cloud. This scattering changes initial angular distribution of cometary ions. Magnetic field perturbation is created by the friction between the electron component of the cometary plasma flow and the cloud. |
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