Grün, E., D.P. Hamilton, R. Riemann,
S.F. Dermott, H. Fechtig, B.A. Gustafson, M.S. Hanner, A. Heck, M. Horanyi,
J. Kissel, H. Krueger, B.-A. Lindblad, D. Linkert, G.
Linkert, I. Mann, J.A.M. McDonnell, G.E. Morfill, C. Polanskey, G.
Schwehm, R. Srama, and H.A. Zook 1996.
Dust Measurements During Galileo's Approach to Jupiter and Io
Science, 274, 399-401.
About a hundred dust impacts per day were detected during the first
week in December 1995 by Galileo during its approach to Jupiter. These
impacts were caused by submicron-sized particles that were just above
the detection limit. After the closest to Io on 7 December, impacts of
these small particles ceased. This effect is expected for dust grains
emitted from Io that exit the field of view of the instrument after
the flyby. The impact rate of bigger micrometer-sized dust grains
continued to increase toward Jupiter. These dust particles are in
orbit about Jupiter or are interplanetary grains that are
gravitationally concentrated near Jupiter.
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