Jovian ring and halo models: comparing predictions for the Juno mission

Details Jovian ring and halo models: comparing predictions for the Juno mission Jovian ring and halo models: comparing predictions for the Juno mission

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p51b1132j&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #P51B-1132

Physics

[5443] Planetary Sciences: Solid Surface Planets / Magnetospheres, [6265] Planetary Sciences: Solar System Objects / Planetary Rings

Scientific paper

We explore the dynamics of small charged dust particles in Jupiter's innermost magnetosphere. In this region the planet's ionosphere is the most important plasma source. Contrary to previous models, plasma and Poynting-Robertson drags appear to be unimportant, but the systematic charge variation of the grains results in surprisingly short lifetimes. Assuming a constant production of small dust particles via continual micrometeoroid bombardment of the larger parent bodies of the main ring, this model does reproduce most remote sensing observations of the ring/halo region of Jupiter made by Voyager, Galileo and Cassini spacecraft, and observations by the Keck telescope during ring plane crossings. The model is used to make predictions for the dust impact rates for the JUNO mission, which is expected to traverse this region multiple times starting in 2016. We report on the predicted fluxes of small grains for 3 different model calculations assuming: a) constant dust charge; b) two charge states representing the expected changes due to the lack of UV while grains are in eclipse; and c) full time-dependent dust charge. The three models predict vastly different life times, spatial and size distributions of small grains.

Affiliated with

Also associated with

No associations

Rating

Jovian ring and halo models: comparing predictions for the Juno mission 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 Jovian ring and halo models: comparing predictions for the Juno mission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jovian ring and halo models: comparing predictions for the Juno mission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1773209