منابع مشابه
Chapter 43 - Volcanism on Io
differentiation The process by which planets and satellites develop layers or zones of different chemical and mineralogical composition. flyby Term used to describe the close approach of a spacecraft to a body, without the spacecraft going into orbit around that body. Galilean satellites The four largest satellites of Jupiter (Io, Europa, Ganymede, Callisto), named after their discoverer Galile...
متن کاملSilicate Cooling Model Fits to Galileo NIMS Data of Volcanism on Io
The Near Infrared Mapping Spectrometer (NIMS) has obtained spectra of volcanoes on the surface of the jovian satellite Io. Fits to data using a silicate cooling model allow us to constrain lava eruption rates and eruption age. The thermal signatures of the hot spots are indicative of active and cooling silicate lava flows. For large, active hot spots maximum ages of flow surfaces detected by NI...
متن کاملGalileo imaging of atmospheric emissions from Io.
The Galileo spacecraft has detected diffuse optical emissions from Io in high-resolution images acquired while the satellite was eclipsed by Jupiter. Three distinct components make up Io's visible emissions. Bright blue glows of more than 300 kilorayleighs emanate from volcanic plumes, probably due to electron impact on molecular sulfur dioxide. Weaker red emissions, possibly due to atomic oxyg...
متن کاملIo after Galileo
Io, the volcanically active innermost large moon of Jupiter, was a target of intense study during the recently completed NASA Galileo mission to Jupiter (1989–2003). Galileo’s suite of instruments obtained unprecedented observations of Io, including high spatial resolution imaging in the visible and infrared. This paper reviews the insights gained about Io’s surface, atmosphere and space enviro...
متن کاملLocations of Hotspots on Io from Galileo Ssi Eclipse
Introduction: Galileo SSI obtained many images of Io in eclipse by Jupiter, in which the only light that reached the camera was due to hotspot emissions from active volcanoes and from diffuse atmospheric/plume glows [1]. During the first orbits of the Galileo mission, there were full disk eclipse images taken of nearly the entire surface of Io. We correlated these images with high resolution ba...
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ژورنال
عنوان ژورنال: Astronomy and Geophysics
سال: 2001
ISSN: 1366-8781,1468-4004
DOI: 10.1046/j.1468-4004.2001.42210.x