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Science 29 November 1996:
Vol. 274. no. 5292, pp. 1501 - 1503
DOI: 10.1126/science.274.5292.1501
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Reports

Solar Wind Magnetic Field Bending of Jovian Dust Trajectories

H. A. Zook, * E. Grün, M. Baguhl, D. P. Hamilton, G. Linkert, J.-C. Liou, R. Forsyth, J. L. Phillips

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 103 times less massive and 5 to 10 times faster than earlier reported.

H. A. Zook and J.-C. Liou, SN3, NASA Johnson Space Center, Houston, TX 77058, USA.
E. Grün, M. Baguhl, G. Linkert, Max-Planck-Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany.
D. P. Hamilton, Department of Astronomy, University of Maryland, College Park, MD 20742-2421, USA.
R. Forsyth, The Blackett Laboratory, Imperial College, London SW7 2BZ, UK.
J. L. Phillips, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
*   To whom correspondence should be addressed. E-mail: zook{at}snmail.jsc.nasa.gov

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Deflection of the Local Interstellar Dust Flow by Solar Radiation Pressure.
M. Landgraf, K. Augustsson, E. Grün, and B. A. S. Gustafson (1999)
Science 286, 2319-2322
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