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Flux transfer events: Scale size and interior structure

Saunders, MA; Russell, CT; Sckopke, N; (1984) Flux transfer events: Scale size and interior structure. Geophysical Research Letters , 11 (2) pp. 131-134. 10.1029/gl011i002p00131. Green open access

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Abstract

We report the first direct investigation of the spatial properties of flux transfer events (FTEs) at the Earth's dayside magnetopause. Simultaneous magnetometer and plasma data from the ISEE 1 and 2 satellites are combined to show that magnetosheath FTEs can have a scale size of order an Earth radius in the magnetopause normal direction. We confirm that the magnetic field within the events appears to be twisted, this twisting corresponding to a core field‐aligned current of magnitude a few × 105 A. We also show evidence for plasma vorticity in FTEs. The transverse flow and field perturbations accompanying the three events studied obey approximately the Walén relation for a propagating Alfvén wave.

Type: Article
Title: Flux transfer events: Scale size and interior structure
Open access status: An open access version is available from UCL Discovery
DOI: 10.1029/gl011i002p00131
Publisher version: https://doi.org/10.1029/gl011i002p00131
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/10112317
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