HR: 15:45h
AN: P34A-02    [Abstracts]
TI: Model Calculations of Titan's Ionosphere
AU: * Robertson, I P
EM: robertin@ku.edu
AF: University of Kansas, Department of Physics and Astronomy, Malott Hall, 1251 Wescoe Hall Dr., Room 1082, Lawrence, KS 66045-7582 United States
AU: Cravens, T E
EM: cravens@ku.edu
AF: University of Kansas, Department of Physics and Astronomy, Malott Hall, 1251 Wescoe Hall Dr., Room 1082, Lawrence, KS 66045-7582 United States
AU: Waite, J H
EM: hunterw@umich.edu
AF: University of Michigan, Department of Atmospheric, Oceanic, and Space Sciences, Space Research Building, 2455 Hayward, Ann Arbor, MI 48109-2143 United States
AU: Wahlund, J
EM: jwe@irfu.se
AF: Swedish Institute of Space Physics, Uppsala Division, Box 537, Uppsala, SE-751 21 Sweden
AB: An ionosphere is created at Titan due to photoionization, by solar radiation, or due to Saturn's magnetospheric electrons which interact with the atmosphere. We have modeled the ionosphere of Titan and will present calculated electron and ion densities. These densities depend on both solar zenith angle and altitude. In our model we use neutral densities measured in Titan's atmosphere by the Cassini Ion and Neutral Mass Spectrometer (INMS). We also use electron temperatures measured by the Cassini RPWS (Langmuir Probe) experiment. The resulting electron densities are compared with the electron densities seen by the RPWS and with ion densities measured by the INMS.
DE: 5405 Atmospheres--composition and chemistry
DE: 5435 Ionospheres (2459)
DE: 5443 Magnetospheres (2756)
SC: Planetary Sciences [P]
MN: 2005 Joint Assembly