Physics – Plasma Physics
Scientific paper
Jun 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3220s02m&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 20, CiteID L20S02
Physics
Plasma Physics
16
Planetary Sciences: Fluid Planets: Magnetospheres (2756), Planetary Sciences: Solar System Objects: Saturn, Radio Science: Waves In Plasma (7867), Radio Science: Instruments And Techniques (1241), Space Plasma Physics: Electrostatic Structures
Scientific paper
On 1 July 2004, the Cassini spacecraft performed its Saturn orbit insertion, twice crossing the equatorial plane between the G and F rings. The radio HF receiver observed a peak at the upper-hybrid frequency and weakly banded emissions having well-defined minima at gyroharmonics. We show that through most of the encounter, these emissions do not result from instabilities, but instead are the quasi-thermal noise that can be calculated from the classical theory of plasma fluctuations. The spectroscopy of this noise yields the electron density, the core and the halo temperatures in the range 2.3 < L/RS < 7, -1.2 < z/RS < +0.1. For the first time, we measure the core temperature of the Kronian plasma torus to be about 0.5 eV in the ring plane at ~2.5RS, and increasing to ~6 eV at 7RS. From the noise minima at the gyroharmonics, we also deduce the magnetic field strength, which agrees with the Cassini's magnetometer data to better than 2%.
Cecconi Baptiste
Kurth William S.
Lecacheux Alain
Meyer-Vernet Nicole
Moncuquet Michel
No associations
LandOfFree
Quasi thermal noise spectroscopy in the inner magnetosphere of Saturn with Cassini/RPWS: Electron temperatures and density 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 Quasi thermal noise spectroscopy in the inner magnetosphere of Saturn with Cassini/RPWS: Electron temperatures and density, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasi thermal noise spectroscopy in the inner magnetosphere of Saturn with Cassini/RPWS: Electron temperatures and density will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-874808