A Local Source for the Pioneer 10 and 11 Circumjovian Dust Detections

Details A Local Source for the Pioneer 10 and 11 Circumjovian Dust Detections A Local Source for the Pioneer 10 and 11 Circumjovian Dust Detections

Jan 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007esasp.643..103z&link_type=abstract

Workshop on Dust in Planetary Systems (ESA SP-643). September 26-30 2005, Kauai, Hawaii. Editors: Krueger, H. and Graps, A., p.1

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We investigate dust grains orbiting a planet and interacting with its satellite system. The grains are subject to the gravitational force of Jupiter and its four Galilean satellites, the electromagnetic force from the rotating planetary magnetic field, and solar radiation pressure. We generate clouds of 5-micron grains launched perpendicular to the surfaces of the Galilean satellites at each of their respective escape velocities. This collisional ejecta moves initially along planar, near-circular orbits but is often perturbed to orbits with high inclinations and eccentricities. Collisions with not only the satellite of origin but also with the other moons and even Jupiter can then occur. These perturbed grains suggest a possible circumjovian origin for the detections by the Pioneer 10 and 11 meteoroid experiments, which recorded dust well out of the Jovian equatorial plane.

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