Solar Wind Magnetic Field Bending of Jovian Dust Trajectories

From September 1991 to October 1992, the cosmic dust detector on the Ulysses spacecraft recorded 11 short bursts, or streams, of dust. These dust grains emanated from the jovian system, and their trajectories were strongly affected by solar wind magnetic field forces. Analyses of the on-board measur...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1996-11, Vol.274 (5292), p.1501-1503
Main Authors: Zook, H. A., Grun, E., Baguhl, M., Hamilton, D. P., Linkert, G., J.-C. Liou, Forsyth, R., Phillips, J. L.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
Cosmic Dust
Dust grain
Earth, ocean, space
Exact sciences and technology
Interplanetary gas and dust (including gegenschein and zodiacal light)
Interplanetary space
Jupiter
Jupiter (Planet)
Magnetic fields
Magnetics
Motion
Particle trajectories
Rotation
Scientific Concepts
Solar system
Solar wind
Space life sciences
Spacecraft
Trajectories
Velocity vector
Wind velocity
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Summary:From September 1991 to October 1992, the cosmic dust detector on the Ulysses spacecraft recorded 11 short bursts, or streams, of dust. These dust grains emanated from the jovian system, and their trajectories were strongly affected by solar wind magnetic field forces. Analyses of the on-board measurements of these fields, and of stream approach directions, show that stream-associated dust grain masses are of the order of 10$^{-18}$ gram and dust grain velocities exceed 200 kilometers per second. These masses and velocities are, respectively, about 10$^3$ times less massive and 5 to 10 times faster than earlier reported.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.274.5292.1501