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The Far-Ultraviolet Oxygen Airglow of Europa and Ganymede
Far-UV spectra of Europa and Ganymede, acquired by the Hubble Space Telescope Goddard High Resolution Spectrograph, indicate that, in addition to faintly reflected sunlight, both satellites emit O IExpand
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Detection of an oxygen atmosphere on Jupiter's moon Europa
EUROPA, the second large satellite out from Jupiter, is roughly the size of Earth's Moon, but unlike the Moon, it has water ice on its surface1. There have been suggestions that an oxygen atmosphereExpand
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Transient Water Vapor at Europa’s South Pole
Europa's Plumes Jupiter's moon Europa has a subsurface ocean and a relatively young icy surface. Roth et al. (p. 171, published online 12 December 2013; see the Perspective by Spencer) analyzedExpand
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Clouds, aerosols, and photochemistry in the Jovian atmosphere
Abstract In this paper we review current ideas about the composition, horizontal and vertical distribution, and microphysical properties of clouds and aerosols in Jupiter's upper troposphere andExpand
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Carbon Monoxide on Jupiter: Evidence for Both Internal and External Sources
Abstract Thirteen lines of the CO band near 4.7 μm have been observed on a jovian hot spot at a resolution of 0.045 cm−1. The measured line profiles indicate that the CO mole fraction is 1.0±0.2 ppbExpand
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Interaction of the Jovian magnetosphere with Europa: Constraints on the neutral atmosphere
A three-dimensional plasma model was developed to understand the sources and sinks that maintain Europa's neutral atmosphere and to study the interaction of the Jovian magnetosphere with thisExpand
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The Pluto system: Initial results from its exploration by New Horizons
New Horizons' views of Pluto The flyby of Pluto and its moon Charon by the New Horizons spacecraft generated news coverage around the world. Now Stern et al. report the first scientific results fromExpand
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Titan's upper atmosphere: Composition and temperature from the EUV solar occultation results
The temperature and composition of the upper atmosphere of Titan have been inferred by observing an occultation of the sun by Titan, using the Voyager 1 ultraviolet spectrometer. The temperature isExpand
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New perspectives on Titan's upper atmosphere from a reanalysis of the Voyager 1 UVS solar occultations
Abstract We have reanalyzed the Voyager 1 UVS solar occultations by Titan to expand upon previous analyses and to resolve inconsistencies that have been noted in the scientific literature. To do so,Expand
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Titan's hydrodynamically escaping atmosphere
Abstract The upper atmosphere of Titan is currently losing mass at a rate ∼ ( 4 – 5 ) × 10 28 amu s −1 , by hydrodynamic escape as a high density, slow outward expansion driven principally by solarExpand
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