Statistical study of inverted-V events: A comparison between experiment and theory

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Statistical study of inverted-V events: A comparison between experiment and theory

Bosqued, J.M. / Maurel, C. / Rème, H. / Sauvaud, J.A. / Kovrazhkin, R.A. / Galperin, Yu.I.

Abstract We present a detailed study of the distribution and of the internal structure of the inverted-V electron precipitation commonly detected in the 500 – 2000 km altitude range aboard the AUREOL-3 satellite. These structured precipitations are statistically observed inside the auroral oval with a maximum occurence in the nightside sector. They correspond to primary electron fluxes peaked at energies generally below 10 keV. It is shown that, as predicted by kinetic theories, most inverted-V structures present a clear relationship between the field-aligned current density carried by the 1 – 20 keV primary electrons and the potential drop inferred from particle distribution functions. Furthermore the study demonstrates the existence of strong electron heating, related to the energy gain, when the current density exceeds some threshold of about 1 – 5 μA(m)⁻².

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Dokumentinformationen

Titel :

Statistical study of inverted-V events: A comparison between experiment and theory

Beteiligte:

Bosqued, J.M. (Autor:in) / Maurel, C. (Autor:in) / Rème, H. (Autor:in) / Sauvaud, J.A. (Autor:in) / Kovrazhkin, R.A. (Autor:in) / Galperin, Yu.I. (Autor:in)

Erschienen in:

Advances in Space Research ; 5 , 4 ; 135-138

Erscheinungsdatum :

1985-01-01

Format / Umfang :

4 pages

ISSN :

0273-1177

DOI :

https://doi.org/10.1016/0273-1177(85)90127-9

Medientyp :

Aufsatz (Zeitschrift)