HR: 0800h
AN: P11B-0122    [Abstracts]
TI: A 3-d gas dynamical model of the neutral gas environment of Enceladus
AU: Crifo, J
EM: crifo@aerov.jussieu.fr
AF: Service d'Aeronomie du CNRS, BP 3, Verrieres le Buisson, Verrieres, 91371 France
AU: Rodionov, S
EM: rodionov@aerov.jussieu.fr
AF: Service dA'Aeronomie du CNRS, BP 3, Verrieres le Buisson, Verrieres, 91371 France
AU: * Szego, K
EM: szego@rmki.kfki.hu
AF: KFKI Res. Inst. for Particle and Nuclear Physics, 29-33 Konkoly Tege, Budapest, 1121 Hungary
AU: Hill, T
EM: hill@rice.edu
AF: Rice University, Houston, Houston, TX 77251-1892 United States
AU: Waite, H
EM: hunterw@unich.edu
AF: University of Michigan, 2455 Hayward, Ann Arbor, MI 48109-2143 United States
AB: The Cassini flybys have revealed that the icy moon Enceladus is a peculiar source of gas, very likely due to some form of volcanic activity. According to the published observations, neither the location of the sources, nor the activity rates are uniform on the surface. Previous modelling has revealed that in such cases the dynamics of the outflowing gas is not simple, and frequently differs from expectations. In this study we investigate how the various assumptions concerning the surface activity influences the distribution of the outflowing neutrals, and what initial conditions can be correlated well with observations.
DE: 0325 Evolution of the atmosphere (1610, 8125)
DE: 6280 Saturnian satellites
SC: Planetary Sciences [P]
MN: Fall Meeting 2005