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Charged particle environment of Titan during the T9 flyby

Szego, K; Bebesi, Z; Bertucci, C; Coates, AJ; Crary, F; Erdos, G; Hartle, R; ... Young, DT; + view all (2007) Charged particle environment of Titan during the T9 flyby. Geophysical Research Letters , 34 (24) , Article L24S03. 10.1029/2007GL030677. Green open access

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Abstract

The ion measurements of the Cassini Plasma Spectrometer are presented which were acquired on 26 December 2005, during the T9 flyby at Titan. The plasma flow and magnetic field directions in the distant plasma environment of the moon were distinctly different from the other flybys. The near-Titan environment, dominated by ions of Titan origin, had a split signature, each with different ion composition; the first region was dominated by dense, slow, and cold ions in the 16-19 and 28-40 amu mass range, the second region contained only ions with mass 1 and 2, much less dense and less slow. Magnetospheric ions penetrate marginally into region 1, whereas the region-2 ion population is mixed. A detailed analysis has led us to conclude that the first event was due to the crossing of the mantle of Titan, whereas the second one very likely was a wake crossing. The split indicates the non-convexity of the ion-dominated volume around Titan. Both ion distributions are analysed in detail.

Type: Article
Title: Charged particle environment of Titan during the T9 flyby
Open access status: An open access version is available from UCL Discovery
DOI: 10.1029/2007GL030677
Publisher version: http://dx.doi.org/10.1029/2007GL030677
Language: English
Additional information: Copyright 2007 by the American Geophysical Union
Keywords: Titan, Charged particles, Wake
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/81877
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