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Journal of Geophysical Research: Space Physics, 2013 We present four sets of ultraviolet images of Ganymede acquired with the Hubble Space Telescope (HST) from 1998 to 2007, all of which show auroral emission from electron excited atomic oxygen. The three different hemispheres of Ganymede captured in the observations show strikingly different emission morphologies.
Melissa A Mcgrath +2 more
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Detection of Ozone on Ganymede
Science, 1996An absorption band at 260 nanometers on the trailing hemisphere of Ganymede, identified as the Hartley band of ozone (O 3 ), was measured with the Hubble Space Telescope. The column abundance of ozone, 4.5 × 10 16 per square centimeter, can be produced by ion impacts or by photochemical ...
K S, Noll +4 more
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Notes and Queries
With ESA's upcoming JUpiter ICy moons Explorer (JUICE) mission to Jupiter and Ganymede, this book provides a fascinating and timely summary of our current knowledge about Ganymede: the largest moon in the Solar System and the only one with an intrinsic magnetic field.
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With ESA's upcoming JUpiter ICy moons Explorer (JUICE) mission to Jupiter and Ganymede, this book provides a fascinating and timely summary of our current knowledge about Ganymede: the largest moon in the Solar System and the only one with an intrinsic magnetic field.
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Ganymede: Observations by Radar
Science, 1975Radar cross-section measurements indicate that Ganymede scatters to Earth 12 percent of the power expected from a conducting sphere of the same size and distance. This compares with 8 percent for Mars, 12 percent for Venus, 6 percent for Mercury, and about 8 percent for the asteroid Toro.
R M, Goldstein, G A, Morris
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Nature, 1982
Evidence of tectonic activity has been found on the Jupiter moon Ganymede, which is the largest solar system icy object known. The transition of dense ice polymorphs in the deep interior of large icy bodies to either less dense polymorphs or liquid water at shallow depths, as internal differentiation and formation of a silicate core occurs, could ...
E. M. Parmentier +3 more
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Evidence of tectonic activity has been found on the Jupiter moon Ganymede, which is the largest solar system icy object known. The transition of dense ice polymorphs in the deep interior of large icy bodies to either less dense polymorphs or liquid water at shallow depths, as internal differentiation and formation of a silicate core occurs, could ...
E. M. Parmentier +3 more
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Chaotic Motion of Europa and Ganymede and the Ganymede-Callisto Dichotomy
Science, 1990Europa and Ganymede may have undergone an episode of chaotic motion before the establishment of the current Laplace resonance involving the three inner Galilean satellites. During this episode, the orbital eccentricities of both satellites may have increased dramatically.
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1989
An authentic work, for the most part poorly preserved and much overpainted, reliably signed and dated 1635.
J. Bruyn +4 more
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An authentic work, for the most part poorly preserved and much overpainted, reliably signed and dated 1635.
J. Bruyn +4 more
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Planetary and Space Science, 2001
Abstract We consider the distribution of plasma density in the atmosphere of Ganymede and present electron density profiles inferred from data of the Plasma Wave instrument of Galileo. To study the question of ionospheric plasma, we present a zero-dimensional local rate equation model of the source and loss functions and the atomic and molecular ...
Eviatar, A. +2 more
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Abstract We consider the distribution of plasma density in the atmosphere of Ganymede and present electron density profiles inferred from data of the Plasma Wave instrument of Galileo. To study the question of ionospheric plasma, we present a zero-dimensional local rate equation model of the source and loss functions and the atomic and molecular ...
Eviatar, A. +2 more
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Energetic Charged Particle Observations During Juno's Close Flyby of Ganymede
Geophysical Research Letters, 2022G Clark, P Kollmann, B H Mauk
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