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Detailed Reference Information |
Tsintikidis, D., Gurnett, D.A., Kurth, W.S. and Granroth, L.J. (1996). Micron-sized particles detected in the vicinity of Jupiter by the Voyager plasma wave instruments. Geophysical Research Letters 23: doi: 10.1029/96GL00961. issn: 0094-8276. |
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Wideband waveform data obtained by the plasma wave instruments onboard the Voyager 1 and 2 spacecraft have been used to study micron-sized dust particles in the vicinity of Jupiter. The technique used was developed during the flybys of Saturn, Uranus, and Neptune, and makes use of the fact that a particle striking the spacecraft at 10--20 km/s causes a voltage pulse in the plasma wave receiver. The waveform of the voltage pulse is much different than the waveform of plasma waves and provides a highly reliable method of detecting micron-sized dust particles. Although the dust impact rate observed in the vicinity of Jupiter is much lower than the rates at Saturn, Uranus, and Neptune, the particles are easily detectable. Approximately 1200 48-second frames of wideband waveform data were examined in the vicinity of Jupiter. Dust impact signatures were found in approximately 20% of these frames. The peak impact rates are about 1 impact per second, and the peak number densities are about 10-5 m-3. Most of the impacts occurred near the equatorial plane at radial distances less than about 35 RJ from Jupiter. Analysis of the detection threshold indicates that the particles have masses greater than 10-11 g, which corresponds to particles with diameters of a few micrometers or larger. ¿ American Geophysical Union 1996 |
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Abstract |
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Keywords
Planetology, Solar System Objects, Dust, Planetology, Solar System Objects, Jupiter, Planetology, Fluid Planets, Rings and dust |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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