Dust Measurements During Galileo's Approach to Jupiter and Io Encounter

E. Grün, D. P. Hamilton, R. Riemann, S. Dermott, H. Fechtig, B. A. Gustafson, M. S. Hanner, A. Heck, M. Horanyi, J. Kissel, H. Krüger, Bertil Anders Lindblad, D. Linkert, G. Linkert, I. Mann, J. A. M. McDonnell, G. E. Morfill, C. Polanskey, G. Schwehm, R. SramaH. A. Zook

Research output: Contribution to journalArticlepeer-review

Abstract

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 submicrometer-sized particles that were just above the detection limit. After the closest approach 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.
Original languageEnglish
Pages (from-to)399-401
JournalScience
Volume274
Issue number5286
DOIs
Publication statusPublished - 1996

Subject classification (UKÄ)

  • Astronomy, Astrophysics and Cosmology

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