Results 181 to 190 of about 1,104 (222)

The Galilean Satellites

Science, 1999
NASA's Galileo mission to Jupiter and improved Earth-based observing capabilities have allowed major advances in our understanding of Jupiter's moons Io, Europa, Ganymede, and Callisto over the past few years. Particularly exciting findings include the evidence for internal liquid water oceans in Callisto and Europa, detection of a strong intrinsic ...
A P, Showman, R, Malhotra
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Magnetospheres of the Galilean Satellites

Science, 1979
The plasma and field perturbations of magnetospheres that would surround magnetized galilean satellites embedded in the corotating jovian plasma differ from those produced by interaction with an unmagnetized conductor. If the intrinsic satellite dipole is antiparallel to that of Jupiter, the magnetosphere will be open. It is predicted that
M G, Kivelson, J A, Slavin, D J, Southwood   +2 more
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Building the Galilean moons system via pebble accretion and migration: a primordial resonant chain

Monthly Notices of the Royal Astronomical Society, 2021
International audienceABSTRACT The origins of the Galilean satellites – namely Io, Europa, Ganymede, and Callisto – is not fully understood yet.
Gustavo Madeira, André Izidoro, Izidoro André   +2 more
exaly   +2 more sources

Galilean satellite obliquities

Journal of Geophysical Research: Planets, 2000
The obliquities, or angular separations between spin pole and orbit pole, for the Galilean satellites of Jupiter are all small but nonzero. We present calculations of the expected obliquity values based on the well known orbital parameters and recent estimates of the moments of inertia of the satellites, under the assumption that all are in Cassini ...
Bruce G. Bills, Richard D. Ray
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Galilean Satellites: Identification of Water Frost

Science, 1972
Water frost absorptions have been detected in the infrared reflectivities of Jupiter's Galilean satellites JII (Europa) and JIII (Ganymede). We have determined the percentage of frost-covered surface area to be 50 to 100 percent for JII, 20 to 65 percent for JIII, and possibly 5 to 25 percent for JIV (Callisto).
C B, Pilcher, S T, Ridgway, T B, McCord
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Touring the Galilean satellites

Astrodynamics Conference, 1970
Galilean satellites touring by Jupiter spacecraft, discussing orbit calculation and encounter ...
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Masses of the Galilean Satellites of Jupiter

Science, 1976
Numerical data derived from the observation of the four great satellites of Jupiter are compared with the values obtained through Sampson's theory by using the new JPL (Jet Propulsion Laboratory) system of masses. It is not possible to fit the coefficient of the free oscillation in the longitude of Ganymede, whose argument is l
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Eclipse spectrophotometry of the Galilean satellites

Icarus, 1979
Narrowband spectrophotometry of satellite eclipses is presented for each of the Galilean satellites. Comparing the partially eclipsed full-phase satellite disk to the uneclipsed disk can reveal colorimetric inhomogeneities on the surface. The trailing half-disk of Ganymede is slightly blue compared to the leading half-disk.
Dale W. Smith, Paul E. Johnson
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Thermal properties of the Galilean satellites

Icarus, 1973
Radiometry in the 20-micron band of eclipses of each of the four Galilean satellites of Jupiter provides information about the thermal properties of the uppermost surface layers of these bodies. Their thermal inertias are all smaller than those of the moon or of Mercury; there is no evidence for atmospheres, and where the data are of high quality ...
David Morrison, Dale P. Cruikshank
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Surficial textures of the Galilean satellites

Nature, 1988
The observations of the Galilean satellites of Jupiter obtained with the IUE have been analyzed as a function of solar phase angle. By fitting the measurements to a shadowing model, comparative descriptions of the microtextures of the optically active portion of the surfaces of the satellites are derived.
Bonnie J. Buratti, Robert M. Nelson, Arthur L. Lane   +2 more
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