Physics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsm13a..03h&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #SM13A-03
Physics
2154 Planetary Bow Shocks, 2159 Plasma Waves And Turbulence, 2772 Plasma Waves And Instabilities, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
The Cassini spacecraft is currently in the fourth orbit of its four-year prime mission to study the Saturnian system. The Radio and Plasma Wave Science (RPWS) investigation is designed to study the radio emissions and plasma waves in the vicinity of Saturn. The RPWS instrument includes a wideband receiver (WBR) that provides high time and frequency resolution over a range of frequencies, allowing the fine structure of various radio and plasma waves to be examined. Langmuir waves produced upstream of the Saturnian bowshock were detected by Cassini during the approach to Saturn, and also during each of the first four orbits of Cassini The structure of the Langmuir waves detected by Cassini spans a broad range of time scales, from tens of minutes to structures with time scales of milliseconds. The large scale structure includes upshifts and downshifts in the frequency of the Langmuir waves, probably due to the location of Cassini in the Saturnian foreshock, and also variation in the frequency of the Langmuir wave emission related to density variations in the solar wind. The small scale structure includes beat-like waveforms suggestive of a non-linear process. The observed structures, both the large and the fine time scales, are very similar to the structure observed in Langmuir waves at Venus, Earth, and Jupiter. The characteristics of these waves will be examined and the distribution of their electric field amplitude will be determined. These results will be compared to the various theories of Langmuir wave production and propagation.
Canu Paolo
Coates Allison
Dougherty Michele
Gurnett Donald A.
Hospodarsky George B.
No associations
LandOfFree
High resolution measurements of Langmuir waves upstream of the Saturnian bow shock does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High resolution measurements of Langmuir waves upstream of the Saturnian bow shock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High resolution measurements of Langmuir waves upstream of the Saturnian bow shock will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1695142