HR: 0800h
AN: SA31B-09    [Abstracts]
TI: Fine-scale Structure of Magnetized Ionospheres
AU: Wei, H Y
EM: hwei@igpp.ucla.edu
AF: Institute of Geophysics and Planetary Physics , University of California 405 Hilgard Ave , Los Angeles, CA 90095-1567, United States
AU: Russell, C T
EM: ctrussell@igpp.ucla.edu
AF: Institute of Geophysics and Planetary Physics , University of California 405 Hilgard Ave , Los Angeles, CA 90095-1567, United States
AU: Dougherty, M K
EM: m.dougherty@imperial.ac.uk
AF: Imperial College, The Blackett Lab, Dept. of Physics, , London, SW7 2BZ, United Kingdom
AU: Luhmann, J G
EM: jgluhman@ssl.berkeley.edu
AF: Space Science Laboratory, University of California, Berkeley, CA , United States
AU: Zhang, T L
EM: tielong.zhang@oeaw.ac.at
AF: Space Research Institute, Schmiedlstrasse 6, Graz, A-8042, Austria
AU: * Delva, M
EM: magda.delva@oeaw.ac.at
AF: Space Research Institute, Schmiedlstrasse 6, Graz, A-8042, Austria
AU: Ma, Y J
EM: yangjuan@umich.od.edu
AF: Institute of Geophysics and Planetary Physics , University of California 405 Hilgard Ave , Los Angeles, CA 90095-1567, United States
AU: Ma, Y J
EM: yangjuan@umich.od.edu
AF: Department of Atmospheric, Oceanic and Space Sciences, University of Michigan 2436A SRB, Ann Arbor, MI 48109, United States
AB: SA09 Interaction of the Solar Wind with Planetary Ionospheres Index terms: 6295, 6225 Fine-scale Structure of Magnetized Ionospheres The ionospheres of Titan, Venus and Mars are magnetized by their interactions with flowing magnetized plasma corotating with Saturn in the former case and convected by the supersonic solar wind in the latter two cases. At solar maximum, the Venus ionosphere was found to be generally field-free by the PVO eccentric orbiter, albeit threaded with twisted flux ropes. Venus Express is now orbiting Venus at solar minimum and detects a largely magnetized ionosphere. Similarly, the repeated low altitude passes of Cassini through the Titan atmosphere reveal a "strongly" magnetized ionosphere. Nevertheless there too we detect signs of twisted magnetic fields. In this paper we examine the fine-scale structures revealed by these missions at Titan and Venus.
DE: 6225 Mars
DE: 6295 Venus
SC: SPA-Aeronomy [SA]
MN: 2007 Joint Assembly