Physical Processes on Circumplanetary Dust
نویسندگان
چکیده
منابع مشابه
Dusty Rings and Circumplanetary Dust: Observations and Simple Physics
Each giant planet is encircled by planetary rings, usually composed of particles centimeters to meters in radius, but each system also contains regions where much smaller dust grains predominate. This chapter summarizes the techniques used to determine the properties of circumplanetary material, and then gives a precis of the known characteristics of circumplanetary rings (with emphasis on tenu...
متن کاملAbstract Title of Dissertation: MAGNETIC FIELD EFFECTS ON THE MOTION OF CIRCUMPLANETARY DUST
Title of Dissertation: MAGNETIC FIELD EFFECTS ON THE MOTION OF CIRCUMPLANETARY DUST Daniel Simon Jontof-Hutter, Doctor of Philosophy, 2012 Dissertation directed by: Professor Douglas P. Hamilton Department of Astronomy Hypervelocity impacts on satellites or ring particles replenish circumplanetary dusty rings with grains of all sizes. Due to interactions with the plasma environment and sunlight...
متن کاملLorentz Andgravitational Resonances on Circumplanetary Particles
Mi ron-sized ir umplanetary dust parti les are subje t to various non-gravitational perturbations, prin ipally solar radiation pressure and ele tromagneti for es, whi h are typi ally a few per ent as strong as the planetary gravity. Individually, these perturbations an ause some orbital evolution, but when the perturbations a t in on ert the ex ursions an be mu h larger. We demonstrate this e e...
متن کاملThe fate of sub-micron circumplanetary dust grains II: Multipolar fields
We study the radial and vertical stability of dust grains launched with all charge-to-mass ratios at arbitrary distances from rotating planets with complex magnetic fields. We show that the aligned dipole magnetic field model analyzed by Jontof-Hutter and Hamilton (2012) is an excellent approximation in most cases, but that fundamentally new physics arises with the inclusion of non-axisymmetric...
متن کاملCircumplanetary Dust Dynamics: Effects of Solar Gravity, Radiation Pressure, Planetary Oblateness, and Electromagnetism
are similar in strength, which greatly complicates the resulting orbital dynamics. Analytic approaches to these We consider the motions of circumplanetary objects perturbed simultaneously by solar gravity, radiation pressure, problems have been limited to cases where orbital eccenplanetary oblateness, and electromagnetic forces. Confining tricities remain small. The interplay between like-sized...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1991
ISSN: 0252-9211
DOI: 10.1017/s0252921100067099