HR: 1340h
AN: P43A-1008    [Abstracts]
TI: Global MHD studies of Titan's interaction
AU: * Nagy, A F
EM: anagy@umich.edu
AF: University of Michigan, 2455 Hayward St., Ann Arbor, MI 48109, United States
AU: Ma, Y
EM: yingjuan@umich.edu
AF: IGPP, UCLA, 6877 Slichter Hall, Los Angeles, CA 90095, United States
AU: Russell, C T
EM: ctrussell@igpp.ucla.edu
AF: IGPP, UCLA, 6877 Slichter Hall, Los Angeles, CA 90095, United States
AU: Cravens, T E
EM: cravens@ku.edu
AF: Univ. Kansas, 1251 Wescoe Hall, Lawrence, KS 66045, United States
AU: Neubauer, F M
EM: neubauer@geo.uni-koeln.de
AF: University of Cologne, Rostocker Str 9, Cologne, 50374, Germany
AU: Bertucci, C
EM: c.bertucci@imperial.ac.uk
AF: The Blackett Laboratory, Imperial College, Space and Atmospheric Physics, London, SW7 2AZ, United Kingdom
AU: Dougherty, M K
EM: m.dougherty@imperial.ac.uk
AF: The Blackett Laboratory, Imperial College, Space and Atmospheric Physics, London, SW7 2AZ, United Kingdom
AU: Coates, A J
EM: ajc@mssl.ucl.ac.uk
AF: Mullard Space Science Laboratory, University College London, MSSL-UCL Dorking Surrey, London, RH5 6NT,
AU: Wahlund, J
EM: jwe@irfu.se
AF: Swedish Inst Space Physics, Uppsala Box 537, Uppsala, SE-75121,
AU: Crary, F J
EM: fcrary@swri.edu
AF: Southwest Research Institute, 6220 Culebra Rd, San Antonio, TX 78228, United States
AB: Cassini Spacecraft made a recent pass of Titan on June 13, 2007 when Titan was located at 13.6 SLT. This flyby, referred to as T32 flyby, is the first occasion that Titan was observed to be outside Saturn's magnetopause. In this presentation, we will study Titan's ionospheric responses to such a sudden change in the upstream plasma flow, using a sophisticated multi-species global MHD model. In addition, simulation results of another flyby of Titan, T34 flyby, will also be presented and compared with Cassini observations. During this T34 flyby, the Cassini spacecraft passed the upstream region of Titan in the equatorial plane, provided important constraints for Titan's ionosphere. Moreover, Titan's ionospheric diffusion time is discussed based on both observations and simulation results.
DE: 2459 Planetary ionospheres (5435, 5729, 6026)
DE: 2732 Magnetosphere interactions with satellites and rings
DE: 6281 Titan
SC: Planetary Sciences [P]
MN: 2007 Fall Meeting