Galileo plasma wave observations near Europa
نویسندگان
چکیده
منابع مشابه
Europa: Initial Galileo Geological Observations
recently than others; Europa could experience current cryovolcanic and tectonic activity. Global-scale patterns of tectonic Images of Europa from the Galileo spacecraft show a surface features suggest deformation resulting from non-synchronous with a complex history involving tectonic deformation, impact rotation of Europa around Jupiter. Some regions of the lithocratering, and possible emplace...
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Observations from the Galileo plasma analyzer (PLS) recorded during two near encounters with Europa are reported. The measured ion energy spectra show that the ions near Europa are a mix of thermalized torus plasmas with approximately Maxwellian ion velocity distributions and partially thermalized pickup ions with ring distributions. The measurements are used to determine plasma moments includi...
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The plasma science (PLS) instrument on the Galileo spacecraft (orbiting Jupiter from December 1995 to September 2003) measured properties of the ions that were trapped in the magnetic field. The PLS data provide a survey of the plasma properties between ~5 and 30 Jupiter radii (RJ) in the equatorial region. We present plasma properties derived via two analysis methods: numerical moments and for...
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Stereo topography of an area near Tyre impact crater, Europa, reveals chaos regions characterised by marginal cliffs and domical topography, rising to 100–200 m above the background plains. The regions contain blocks which have both rotated and tilted. We tested two models of chaos formation: a hybrid diapir model, in which chaos topography is caused by thermal or compositional buoyancy, and bl...
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landscape that has escaped erasure by heating from below is imprinted with generation after generation of intersecting Four distinct classes of lineaments can be described on the ridges at various scales and orientations. Relatively recent fracbasis of Galileo’s improved spectral and spatial coverage of tures expose coarse-grained, clean ice in the shallow subsurface, Europa: (1) incipient crac...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 1998
ISSN: 0094-8276
DOI: 10.1029/97gl03706