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Record Details

Record 9 of 1785
X-MIME: An Imaging X-ray Spectrometer for Detailed Study of Jupiter's Icy Moons and the Planet's X-ray Aurora
Author and Affiliation:
Elsner, R. F.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Ramsey, B. D.(NASA Marshall Space Flight Center, Huntsville, AL, United States)
Waite, J. H.(Michigan Univ., MI, United States)
Rehak, P.(Brookhaven National Lab., Upton, NY, United States)
Johnson, R. E.(Virginia Univ., VA, United States)
Cooper, J. F.(Raytheon Co., Greenbelt, MD, United States)
Swartz, D. A.(Universities Space Research Association, Huntsville, AL, United States)
Abstract: Remote observations with the Chandra X-ray Observatory and the XMM-Newton Observatory have shown that the Jovian system is a source of x-rays with a rich and complicated structure. The planet's polar auroral zones and its disk are powerful sources of x-ray emission. Chandra observations revealed x-ray emission from the Io Plasma Torus and from the Galilean moons Io, Europa, and possibly Ganymede. The emission from these moons is certainly due to bombardment of their surfaces of highly energetic protons, oxygen and sulfur ions from the region near the Torus exciting atoms in their surfaces and leading to fluorescent x-ray emission lines. Although the x-ray emission from the Galilean moons is faint when observed from Earth orbit, an imaging x-ray spectrometer in orbit around these moons, operating at 200 eV and above with 150 eV energy resolution, would provide a detailed mapping (down to 40 m spatial resolution) of the elemental composition in their surfaces. Such maps would provide important constraints on formation and evolution scenarios for the surfaces of these moons. Here we describe the characteristics of X-MIME, an imaging x-ray spectrometer under going a feasibility study for the JIMO mission, with the ultimate goal of providing unprecedented x-ray studies of the elemental composition of the surfaces of Jupiter's icy moons and Io, as well as of Jupiter's auroral x-ray emission.
Publication Date: Jan 01, 2004
Document ID:
20050000105
(Acquired Jan 04, 2005)
Subject Category: INSTRUMENTATION AND PHOTOGRAPHY
Document Type: Preprint
Meeting Information: 36th Annual DPS Meeting; 8-12 Nov. 2004; Louisville, KY; United States
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL, United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: X RAY SPECTROMETERS; IMAGING SPECTROMETERS; JUPITER (PLANET); JUPITER SATELLITES; X RAY ASTRONOMY; EMISSION SPECTRA; X RAY SPECTRA
Availability Source: Other Sources
Availability Notes: Abstract Only
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