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


    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
    Issue number5286
    Publication statusPublished - 1996

    Subject classification (UKÄ)

    • Astronomy, Astrophysics and Cosmology


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