ELF plasma waves in hot and cold plasma fluxes observed by Prognoz-8 in the magnetospheric tail

We present Prognoz-8 observations of low-frequency plasma waves (2-105 Hz) associated with plasma fluxes near the outer boundary of the plasma sheet. These plasma fluxes were different from the regular plasma sheet boundary layer and consisted of tailward flowing warm proton and cold oxygen beams ac...

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Published inAnnales geophysicae (1988) Vol. 12; no. 10-11; pp. 1006 - 1017
Main Authors BLECKI, J, NIKUTOWSKI, B, KOPERSKI, P, POPIELAWSKA, B, KOSSACKI, K, ROMANOV, S. A, SAVIN, S. P
Format Journal Article
LanguageEnglish
Published Katlenburg-Lindau European Geophysical Society 01.11.1994
Subjects
Earth, ocean, space
Exact sciences and technology
External geophysics
Physics of the magnetosphere
Plasma motion, convection, circulation. Plasma instabilities
Magnetospheric tail
Artificial satellite
Acoustic instability
Electrostatic wave
Plasma flow
Extremely low frequency
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Summary:We present Prognoz-8 observations of low-frequency plasma waves (2-105 Hz) associated with plasma fluxes near the outer boundary of the plasma sheet. These plasma fluxes were different from the regular plasma sheet boundary layer and consisted of tailward flowing warm proton and cold oxygen beams accompanied by rather cold electrons (Te less than 100 eV). Observed plasma characteristics were used in the numerical solution of the dispersion relation for the ion-beam acoustic instability. Detailed analysis shows that this instability can be a source of observed emissions at frequencies up to 25 Hz. (Author)
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0992-7689
1432-0576
DOI:10.1007/s005850050123