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Hybrid simulation of Titan's interaction with the supersonic solar wind during Cassini's T96 flyby
Univ Cologne, Inst Geophys & Meteorol, Cologne, Germany.;Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA..
Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA..
Univ Cologne, Inst Geophys & Meteorol, Cologne, Germany..
Tech Univ Carolo Wilhelmina Braunschweig, Inst Theoret Phys, Braunschweig, Germany.;German Aerosp Ctr, Inst Planetary Res, Berlin, Germany..
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2016 (Engelska)Ingår i: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 43, nr 1, s. 35-42Artikel i tidskrift (Refereegranskat) Published
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Abstract [en]

By applying a hybrid (kinetic ions and fluid electrons) simulation code, we study the plasma environment of Saturn's largest moon Titan during Cassini's T96 flyby on 1 December 2013. The T96 encounter marks the only observed event of the entire Cassini mission where Titan was located in the supersonic solar wind in front of Saturn's bow shock. Our simulations can quantitatively reproduce the key features of Cassini magnetic field and electron density observations during this encounter. We demonstrate that the large-scale features of Titan's induced magnetosphere during T96 can be described in terms of a steady state interaction with a high-pressure solar wind flow. About 40min before the encounter, Cassini observed a rotation of the incident solar wind magnetic field by almost 90 degrees. We provide strong evidence that this rotation left a bundle of fossilized magnetic field lines in Titan's ionosphere that was subsequently detected by the spacecraft.

Ort, förlag, år, upplaga, sidor
2016. Vol. 43, nr 1, s. 35-42
Nyckelord [en]
Titan, Cassini, T96 flyby, moon-plasma interaction
Nationell ämneskategori
Astronomi, astrofysik och kosmologi
Identifikatorer
URN: urn:nbn:se:uu:diva-278012DOI: 10.1002/2015GL066848ISI: 000369014100005OAI: oai:DiVA.org:uu-278012DiVA, id: diva2:906035
Forskningsfinansiär
Deutsche Forschungsgemeinschaft (DFG), SI1753/1-1Tillgänglig från: 2016-02-23 Skapad: 2016-02-23 Senast uppdaterad: 2017-11-30Bibliografiskt granskad

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Edberg, Niklas J. T.

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Edberg, Niklas J. T.
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Institutet för rymdfysik, Uppsalaavdelningen
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Geophysical Research Letters
Astronomi, astrofysik och kosmologi

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