Instability of the magnetosphere-ionosphere convection and formation of auroral arcs
In this paper we study an instability of the plasma moving towards the Earth near the inner plasma sheet boundary. We include both the interchange instability of the plasma sheet and the magnetosphere-ionosphere interaction instability caused by an effect of field-aligned currents (connected with el...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
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| Series: | Annales Geophysicae |
| Online Access: | http://www.ann-geophys.net/12/636/1994/angeo-12-636-1994.html |
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doaj-5485f93456464258bdcc948e904812212020-11-25T00:03:06ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-0576127636641Instability of the magnetosphere-ionosphere convection and formation of auroral arcsA. E. KozlovskyW. B. LyatskyIn this paper we study an instability of the plasma moving towards the Earth near the inner plasma sheet boundary. We include both the interchange instability of the plasma sheet and the magnetosphere-ionosphere interaction instability caused by an effect of field-aligned currents (connected with electron precipitation) on ionospheric conductivity. The instability leads to the separation of steady-state magnetospheric convection into parallel layers. This instability may be responsible for the appearance of quiet auroral arcs inside region 2 of field-aligned currents flowing out of the ionosphere. This instability allows us to explain also the existence of crossing auroral arcs. http://www.ann-geophys.net/12/636/1994/angeo-12-636-1994.html |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
A. E. Kozlovsky W. B. Lyatsky |
| spellingShingle |
A. E. Kozlovsky W. B. Lyatsky Instability of the magnetosphere-ionosphere convection and formation of auroral arcs Annales Geophysicae |
| author_facet |
A. E. Kozlovsky W. B. Lyatsky |
| author_sort |
A. E. Kozlovsky |
| title |
Instability of the magnetosphere-ionosphere convection and formation of auroral arcs |
| title_short |
Instability of the magnetosphere-ionosphere convection and formation of auroral arcs |
| title_full |
Instability of the magnetosphere-ionosphere convection and formation of auroral arcs |
| title_fullStr |
Instability of the magnetosphere-ionosphere convection and formation of auroral arcs |
| title_full_unstemmed |
Instability of the magnetosphere-ionosphere convection and formation of auroral arcs |
| title_sort |
instability of the magnetosphere-ionosphere convection and formation of auroral arcs |
| publisher |
Copernicus Publications |
| series |
Annales Geophysicae |
| issn |
0992-7689 1432-0576 |
| description |
In this paper we study an instability of the plasma moving towards the Earth near the inner plasma sheet boundary. We include both the interchange instability of the plasma sheet and the magnetosphere-ionosphere interaction instability caused by an effect of field-aligned currents (connected with electron precipitation) on ionospheric conductivity. The instability leads to the separation of steady-state magnetospheric convection into parallel layers. This instability may be responsible for the appearance of quiet auroral arcs inside region 2 of field-aligned currents flowing out of the ionosphere. This instability allows us to explain also the existence of crossing auroral arcs. |
| url |
http://www.ann-geophys.net/12/636/1994/angeo-12-636-1994.html |
| work_keys_str_mv |
AT aekozlovsky instabilityofthemagnetosphereionosphereconvectionandformationofauroralarcs AT wblyatsky instabilityofthemagnetosphereionosphereconvectionandformationofauroralarcs |
| _version_ |
1725435020240224256 |