Near-infrared Brightness of the Galilean Satellites Eclipsed in Jovian Shadow: A New Technique to Investigate Jovian Upper Atmosphere [PDF]
, 2014 We have discovered that Europa, Ganymede and Callisto are bright around 1.5 {\mu}m even when not directly lit by sunlight, based on observations from the Hubble Space Telescope and the Subaru Telescope.
Arimatsu, K. +14 more
core +3 more sources
Europa’s Sodium and Potassium Exosphere during Juno’s Flyby
The Planetary Science JournalJupiter’s icy moon Europa is enveloped in gaseous sodium and potassium that resonantly scatter sunlight as optical emission lines. The High Resolution Echelle Spectrograph on the Keck I telescope has spatially mapped these alkalis contemporaneously with ...
Emma Lovett +2 more
doaj +1 more source
Comparing NASA Discovery and New Frontiers Class Mission Concepts for the Io Volcano Observer
The Planetary Science JournalJupiter’s moon Io is a highly compelling target for future exploration that offers critical insight into tidal dissipation processes and the geology of high heat flux worlds, including primitive planetary bodies, such as the early Earth, that are shaped ...
Christopher W. Hamilton +33 more
doaj +1 more source
The dynamics of the de Sitter resonance
, 2017 We study the dynamics of the de Sitter resonance, namely the stable equilibrium configuration of the first three Galilean satellites. We clarify the relation between this family of configurations and the more general Laplace resonant states.
Celletti, Alessandra +2 more
core +1 more source
Europa’s H2O2: Temperature Insensitivity and a Correlation with CO2
The Planetary Science JournalH _2 O _2 is part of Europa’s water-ice radiolytic cycle and a potential source of oxidants to Europa’s subsurface ocean. However, factors controlling the concentration of this critical surface species remain unclear.
Peiyu Wu +3 more
doaj +1 more source
Control networks for the Galilean satellites, November 1979 [PDF]
Pictures of the four Galilean satellites taken as the two Voyager spacecraft approached Jupiter during March and July 1979 are presented. Control nets of the Galilean satellites, computed photogrammetrically, and measurements of the mean radii are ...
Davies, M. E. +3 more
core +1 more source
Impact-Generated Dust Clouds Surrounding the Galilean Moons
, 2003 Tenuous dust clouds of Jupiter's Galilean moons Io, Europa, Ganymede and Callisto have been detected with the in-situ dust detector on board the Galileo spacecraft.
Grün, Eberhard +3 more
core +1 more source
Triton's surface age and impactor population revisited in light of Kuiper Belt fluxes: Evidence for small Kuiper Belt objects and recent geological activity [PDF]
, 1999 Neptune's largest satellite, Triton, is one of the most fascinating and enigmatic bodies in the solar system. Among its numerous interesting traits, Triton appears to have far fewer craters than would be expected if its surface was primordial.
Bullock M. A. +8 more
core +2 more sources
The Planetary Science JournalWe performed experiments of implantation of energetic sulfur ions (105 keV) into 2:1 water:propane ices at 80 K and analyzed the resulting refractory organic matter with ultrahigh-resolution mass spectrometry.
Alexis Bouquet +18 more
doaj +1 more source
The Lense-Thirring effect in the Jovian system of the Galilean satellites and its measurability [PDF]
, 2005 In this paper we investigate the possibility of measuring the post-Newtonian general relativistic gravitomagnetic Lense-Thirring effect in the Jovian system of its Galilean satellites Io, Europa, Ganymede and Callisto in view of recent developments in ...
Iorio L. +6 more
core +4 more sources