HR: 1340h
AN: SM53A-1084    [Abstracts]
TI: On the observation of ‘kronian' energetic events: combined observations of radio and magnetic signatures
AU: * Louarn, P
EM: philippe.louarn@cesr.fr
AF: CESR/CNRS, 9,Av. du Colonel Roche, Toulouse, 31029, France
AU: Kurth, W S
EM: william-kurth@uiowa.edu
AF: Dep. of Physics and Astronomy, University of Iowa, Iowa City, IA 52242, United States
AU: Gurnett, D A
EM: Donald-Gurnett
AF: Dep. of Physics and Astronomy, University of Iowa, Iowa City, IA 52242, United States
AU: Jackman, C M
EM: c.jackman@imperial.ac.uk
AF: Space and Atmospheric Physics, Imperial College, London, SW7 2BZ, United Kingdom
AU: Dougherty, M K
EM: M.Dougherty@imperial.ac.uk
AF: Space and Atmospheric Physics, Imperial College, London, SW7 2BZ, United Kingdom
AB: In a recent paper [Louarn et al, 2007], we have reported on radio signatures observed at Saturn by the Cassini RPWS experiment which are strikingly similar to the jovian ‘energetic events' observed by Galileo [Louarn et al, 1998]. They consist of sudden intensifications of the auroral radio emission (SKR) followed by the detection of a periodic narrowband radiation which most likely originates from Saturn's plasma disk. At Jupiter, these radio signatures are associated with magnetic perturbations suggesting that dynamical processes develop in the magnetodisc, most certainly due to radial plasma transport. We examine whether comparable magnetic perturbations are observed in Saturn's system, in conjunction with radio ‘events'. From an initial analysis, it appears that such associated magnetic perturbations are systematically observed. Examples will be given and discussed for: (1) strong perturbations in the plasma disc/plasma sheet and (2) compression effects seen when CASSINI is in the flank of the magnetosphere.
DE: 2740 Magnetospheric configuration and dynamics
DE: 2756 Planetary magnetospheres (5443, 5737, 6033)
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting