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Statistical Study of the Energetic Proton Environment at Titan’s Orbit From the Cassini Spacecraft
dc.contributor.authorRegoli, L. H.
dc.contributor.authorRoussos, E.
dc.contributor.authorDialynas, K.
dc.contributor.authorLuhmann, J. G.
dc.contributor.authorSergis, N.
dc.contributor.authorJia, X.
dc.contributor.authorRomán, D.
dc.contributor.authorAzari, A.
dc.contributor.authorKrupp, N.
dc.contributor.authorJones, G. H.
dc.contributor.authorCoates, A. J.
dc.contributor.authorRae, I. J.
dc.date.accessioned2018-08-13T18:51:54Z
dc.date.available2019-08-01T19:53:23Zen
dc.date.issued2018-06
dc.identifier.citationRegoli, L. H.; Roussos, E.; Dialynas, K.; Luhmann, J. G.; Sergis, N.; Jia, X.; Román, D. ; Azari, A.; Krupp, N.; Jones, G. H.; Coates, A. J.; Rae, I. J. (2018). "Statistical Study of the Energetic Proton Environment at Titan’s Orbit From the Cassini Spacecraft." Journal of Geophysical Research: Space Physics 123(6): 4820-4834.
dc.identifier.issn2169-9380
dc.identifier.issn2169-9402
dc.identifier.urihttps://hdl.handle.net/2027.42/145346
dc.description.abstractA statistical study of the energetic proton environment at Titan’s orbit as captured by the MIMI/LEMMS and MIMI/CHEMS instruments is performed. The data analyzed cover all the dedicated flybys of Titan by Cassini as well as the orbit crossings that happen far from the moon. The energetic environment is found to be highly variable on timescales comparable to that of the duration of a flyby. Analysis of H+ ion fluxes reveals a weak asymmetry in Saturn local time with the highest fluxes occurring in the premidnight sector of the magnetosphere. A correlation between the energetic ion fluxes and the location of Cassini in the magnetosphere with respect to the center of the current sheet can be observed. Finally, an empirical model of proton spectra for energies above 20 keV is derived based on fits to Kappa distribution functions. This model can be used to better understand the interaction of Titan with the magnetosphere and the energy deposition by energetic particles below the main ionospheric peak.Key PointsEnergetic particle environment at Titan’s orbit is highly variableIon data present SLT asymmetry with higher fluxes in the premidnight sectorDerivation of empirical model of ion spectra based on Kappa distribution function is presented
dc.publisherElsevier
dc.publisherWiley Periodicals, Inc.
dc.subject.otherMIMI
dc.subject.otherTitan
dc.subject.otherenergetic ions
dc.subject.otherempirical model
dc.subject.otherKappa distributions
dc.subject.otherCassini
dc.titleStatistical Study of the Energetic Proton Environment at Titan’s Orbit From the Cassini Spacecraft
dc.typeArticleen_US
dc.rights.robotsIndexNoFollow
dc.subject.hlbsecondlevelAstronomy and Astrophysics
dc.subject.hlbtoplevelScience
dc.description.peerreviewedPeer Reviewed
dc.description.bitstreamurlhttps://deepblue.lib.umich.edu/bitstream/2027.42/145346/1/jgra54321_am.pdf
dc.description.bitstreamurlhttps://deepblue.lib.umich.edu/bitstream/2027.42/145346/2/jgra54321.pdf
dc.identifier.doi10.1029/2018JA025442
dc.identifier.sourceJournal of Geophysical Research: Space Physics
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dc.owningcollnameInterdisciplinary and Peer-Reviewed


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