The Io mass-loading disk: Constraints provided by ion cyclotron wave observations

Details The Io mass-loading disk: Constraints provided by ion cyclotron wave observations The Io mass-loading disk: Constraints provided by ion cyclotron wave observations

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jgr...10626233r&link_type=abstract

Journal of Geophysical Research, Volume 106, Issue A11, p. 26233-26242

Physics

3

Planetology: Fluid Planets: Magnetospheres, Planetology: Solar System Objects: Jovian Satellites

Scientific paper

Galileo measurements on the first two encounters with Io have revealed that ion cyclotron waves associated with SO2+ and SO+ can extend to at least 20 Io radii (RIo) on the anti-Jupiter side of Io but to only ~7 RIo on the Jupiter facing side. In the flow direction the waves extend downstream at least 10 RIo, but not upstream of Io. Earlier Voyager observations, 11 RIo below Io, also show no evidence for the generation of ion cyclotron waves. Quite unlike expectations from growth rate calculations in a uniform infinite plasma, the waves are frequently found to be propagating at an oblique angle to the magnetic field. The absence of waves upstream of Io and the wide dispersal of the ions creating the waves inward and outward from Io are consistent with a mass-loading disk created by a short period of acceleration of the ions by the Jovian corotation electric field followed by reneutralization, producing a spray of SO, SO2, S, and possibly H2S across the magnetic field similar to the spray proposed for the neutral sodium cloud by Wilson and Schneider [1999]. When these fast neutrals are reionized farther from Io, they lead to wave growth.

Affiliated with

Also associated with

No associations

Rating

The Io mass-loading disk: Constraints provided by ion cyclotron wave observations 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 The Io mass-loading disk: Constraints provided by ion cyclotron wave observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Io mass-loading disk: Constraints provided by ion cyclotron wave observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1555654