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A multi-instrument view of tail reconnection at Saturn

Jackman, CM; Arridge, CS; Krupp, N; Bunce, EJ; Mitchell, DG; McAndrews, HJ; ... Coates, AJ; + view all (2008) A multi-instrument view of tail reconnection at Saturn. J GEOPHYS RES-SPACE , 113 (A11) , Article A11213. 10.1029/2008JA013592.

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Abstract

Three instances of tail reconnection events at Saturn involving the ejection of plasmoids downtail have been reported by Jackman et al. (2007) using data from Cassini's magnetometer (MAG). Here we show two newly discovered events, as identified in the MAG data by northward/southward turnings and intensifications of the field. We discuss these events along with the original three, with the added benefit of plasma and energetic particle data. The northward/southward turnings of the field elucidate the position of the spacecraft relative to the reconnection point and passing plasmoids, while the variability of the azimuthal and radial field components during these events indicates corresponding changes in the angular momentum of the magnetotail plasma following reconnection. Other observable effects include a reversal in flow direction of energetic particles, and the apparent evacuation of the plasma sheet following the passage of plasmoids.

Type:Article
Title:A multi-instrument view of tail reconnection at Saturn
DOI:10.1029/2008JA013592
Keywords:SUBSTORM, MAGNETOSPHERES, MAGNETOTAIL
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Space and Climate Physics

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