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Internal structure and spatial dimensions of whistler wave regions in the magnetopause boundary layer
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
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2007 (English)In: Annales Geophysicae, ISSN 0992-7689, E-ISSN 1432-0576, Vol. 25, no 11, 2439-2451 p.Article in journal (Refereed) Published
Abstract [en]

We use whistler waves observed close to the mag-netopause as an instrument to investigate the internal struc-ture of the magnetopause-magnetosheath boundary layer. Wefind that this region is characterized by tube-like structureswith dimensions less than or comparable with an ion iner-tial length in the direction perpendicular to the ambient mag-netic field. The tubes are revealed as they constitute regionswhere whistler waves are generated and propagate. We be-lieve that the region containing tube-like structures extendseveral Earth radii along the magnetopause in the boundarylayer. Within the presumed wave generating regions we findcurrent structures moving at the whistler wave group velocityin the same direction as the waves.

Place, publisher, year, edition, pages
2007. Vol. 25, no 11, 2439-2451 p.
Keyword [en]
magnetospheric physics (Magnetopause cusp and boundary layers; Plasma waves and instabilities); Space plasma physics (Wave-particle interactions)
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-14613ISI: 000251998900015OAI: oai:DiVA.org:uu-14613DiVA: diva2:42384
Available from: 2008-01-31 Created: 2008-01-31 Last updated: 2017-12-11Bibliographically approved

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Stenberg, GabriellaAndré, MatsVaivads, AndrisRosenqvist, Lisa

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