Simultaneous occurrence of IPDP and auroral absorption as indication of joint westward drift of protons and electrons |
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| Authors: | OI Shumilov BV Kiselev OM Raspopov VA Troitskaya |
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| Institution: | Leningrad State University, Leningrad, U.S.S.R.;Institute of Physics of the Earth, Moscow, U.S.S.R. |
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| Abstract: | The dynamics of the intervals of pulsation of diminishing periods (IPDP) generation region and that of the auroral absorption (AA) are compared. It is known that IPDP is the manifestation of the ion-cyclotron instability due to precipitation and drift of protons and AA is the result of electron precipitation. The westward movement in space and time of the AA and IPDP generation region was revealed. This is the first experimental confirmation of the joint westward drift of the electron and proton in the form of neutral clouds in the magnetosphere during an auroral substorm. |
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