Other
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3424s04m&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 24, CiteID L24S04
Other
11
Ionosphere: Ionosphere/Magnetosphere Interactions (2736), Ionosphere: Planetary Ionospheres (5435, 5729, 6026), Planetary Sciences: Solar System Objects: Titan
Scientific paper
The Titan's plasma wake has been investigated using observations from the Radio and Plasma Wave Science (RPWS) instrument onboard the Cassini spacecraft during one Titan flyby on December 26, 2005. The Langmuir Probe and the wideband receiver suggest a strong asymmetry of the plasma wake, which is displaced from the ideal wake. Two distinct structures are identified inbound and outbound of the flyby with significantly different electron number densities (n e ). The maximum electron number density reached 14 cm-3 on the Saturn side, connected to the sunlit ionosphere, while on the opposite side of Saturn observations indicate a density smaller than 2 cm-3. Other derived parameters of the Langmuir probe analysis suggest also a difference in plasma composition between the two structures, where heavy and light ions dominate the Saturn and anti-Saturn side respectively. The total ion outflow is estimated at 2-7 × 1025 ions/s assuming a cylindrical geometry for the plasma wake.
Bostrom Rolf
Canu Paolo
Coates Andrew J.
Gurnett Donald
Kurth Willaim S.
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