منابع مشابه
Sputter Ejection of Matter From Io
The direct collisional interaction of magnetospheric particles with Io will lead to sputtering of atoms and molecules from the satellite into circum-Jovian space. The -•520-eV S (and -•260-eV O) ions composing the Io toms are the most effective agents for net sputter emoval of matter from the satellite. An incident flux of-•10 •ø cm -2 s -• is estimated to provide -•5 x 10 •ø S atoms cm -2 s -•...
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The problem of redistributing IO from bondpads on the periphery of an IC to an array of solder bumps occurs frequently in MCM layout. We show that the commonly held belief that providing enough escapes at the perimeter of the array is not suucient to guarantee routability of the design. We analyze the Even Wiring Distribution (EWD) routing heuristic and show that it produces designs whose criti...
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We report experimental studies of 100 keV Ar(+) ion irradiation of ice leading to the formation of molecular oxygen and its trapping and ejection from the surface, at temperatures between 80 and 150 K. The use of a mass spectrometer and a quartz-crystal microbalance and sputter depth profiling at 20 K with low energy Ar ions allowed us to obtain a consistent picture of the complex radiolytic me...
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The surface of lo may be covered with a layer of ammonia ice containing trace amounts of sodium potassium, and calcium; and atmospheric nitrogen could be formed as a photochemical product of ammonia photolysis. Intense sporadic sodium emission from Io can be excited by collisions involving vib~ationally excited n.itrogen molecules. These metastable molecules may be formed by electron impact, wi...
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...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 1981
ISSN: 0148-0227
DOI: 10.1029/ja086ia08p06933