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  • Cambridge University Press (CUP)  (2)
  • Baguhl, M.  (2)
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  • Cambridge University Press (CUP)  (2)
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  • 1
    Online-Ressource
    Online-Ressource
    Cambridge University Press (CUP) ; 1996
    In:  International Astronomical Union Colloquium Vol. 150 ( 1996), p. 481-484
    In: International Astronomical Union Colloquium, Cambridge University Press (CUP), Vol. 150 ( 1996), p. 481-484
    Kurzfassung: The Galileo and Ulysses dust detectors can detect electric charges of dust particles. Dust particles entering the sensor (see, e.g., Grün et al. 1992) may be detected by the charge Q p that they induce to the charge grid. All suitably massive dust particles - charged or uncharged - are then detected by the cloud of ions and electrons they produce during the impact on the hemispherical target after the time of flight between the charge grid and the target. After separation in the electric field, ions and electrons are collected by separate electrodes and produce two pulses of opposite polarity. From the two pulse heights and the rise times, the mass and impact speed of the dust particle are derived.
    Materialart: Online-Ressource
    ISSN: 0252-9211
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 1996
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Online-Ressource
    Online-Ressource
    Cambridge University Press (CUP) ; 1996
    In:  International Astronomical Union Colloquium Vol. 150 ( 1996), p. 23-25
    In: International Astronomical Union Colloquium, Cambridge University Press (CUP), Vol. 150 ( 1996), p. 23-25
    Kurzfassung: Six streams of dust were unexpectedly detected by the Ulysses dust detector while this spacecraft was approximately within one AU distance from Jupiter (Grün et al., 1993). Stream durations ranged from hours to days for individual streams. It was clear that the dust in these streams (or bursts), from their directionality of approach to the spacecraft and from the nearness of stream occurrences to Jupiter, emanated from the Jovian system. Following the original report, Baguhl et al. (1994) later relaxed the criteria for differentiating true dust impacts from “noise pulses” and found almost triple the number of dust impacts in the six streams already found. They also found 5 more streams that, except for one stream, clearly emanated from the Jovian system. The criteria were relaxed in such a way as to not introduce “noise events” into the data.
    Materialart: Online-Ressource
    ISSN: 0252-9211
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 1996
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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