Flux transfer event observation at Saturn's dayside magnetopause by the Cassini spacecraft

Jasinski, Jamie M. and Slavin, James A. and Arridge, Christopher S. and Poh, Gangkai and Jia, Xianzhe and Sergis, Nick and Jones, Geraint H. and Waite, J. Hunter and Coates, A. J. (2016) Flux transfer event observation at Saturn's dayside magnetopause by the Cassini spacecraft. Geophysical Research Letters, 43. ISSN 0094-8276

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We present the first observation of a flux rope at Saturn's dayside magnetopause. This is an important result because it shows that the Saturnian magnetopause is conducive to multiple X-line reconnection and flux rope generation. Minimum variance analysis shows that the magnetic signature is consistent with a flux rope. The magnetic observations were well fitted to a constant-α force-free flux rope model. The radius and magnetic flux content of the rope are estimated to be 4600–8300 km and 0.2–0.8 MWb, respectively. Cassini also observed five traveling compression regions (remote signatures of flux ropes), in the adjacent magnetosphere. The magnetic flux content is compared to other estimates of flux opening via reconnection at Saturn.

Item Type: Journal Article
Journal or Publication Title: Geophysical Research Letters
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1900
Departments: Faculty of Science and Technology > Physics
ID Code: 80350
Deposited By: ep_importer_pure
Deposited On: 12 Jul 2016 14:02
Refereed?: Yes
Published?: Published
Last Modified: 20 Oct 2019 00:47
URI: https://eprints.lancs.ac.uk/id/eprint/80350

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