Results 61 to 70 of about 9,309 (217)

Mapping of the Ganymede surface reflectance from Juno/UVS data

Astronomy & Astrophysics
Context. Ganymede is the only moon in the Solar System with an intrinsic magnetic field that actively interacts with the Jupiter magnetosphere. This precipitates energetic electrons that generate ultraviolet (UV) auroral emission. Aims. In sunlit auroral
Benmahi B., Hue V., Molyneux P., Vorburger A., Waite J. H., Gronoff G., Bouquet A., Gladstone G. R., Leblanc F., Benne B., Bonfond B., Barthelemy M., Blanc M., Grodent D. C., Greathouse T. K.   +14 more
doaj   +1 more source

Investigating the Detectability of Body Wave Phases From Tidal Ice Cracking Events on Titan With the Dragonfly Short‐Period Seismometer

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Detecting seismic activity on Saturn's icy moon Titan during the Dragonfly mission could provide crucial information on its internal structure. The geological complexity of the moon's surface suggests significant cyclic tidal deformation, likely leading to the fracturing of the ice shell.
L. Delaroque, T. Kawamura, A. Lucas, S. Rodriguez, K. Onodera, H. Shiraishi, R. Yamada, S. Tanaka, M. P. Panning, R. D. Lorenz   +9 more
wiley   +1 more source

Growth and evolution of satellites in a Jovian massive disc

, 2017
The formation of satellite systems in circum-planetary discs is considered to be similar to the formation of rocky planets in a proto-planetary disc, especially Super-Earths.
Kley, Wilhelm, Moraes, Ricardo A, Neto, Ernesto Vieira   +2 more
core   +1 more source

Surface charging of thick porous water ice layers relevant for ion sputtering experiments [PDF]

, 2016
We use a laboratory facility to study the sputtering properties of centimeter-thick porous water ice subjected to the bombardment of ions and electrons to better understand the formation of exospheres of the icy moons of Jupiter.
Brouet, Y., Galli, A., Jost, B., Poch, O., Pommerol, A., Thomas, N., Tulej, M., Vorburger, A., Wurz, P.   +8 more
core   +2 more sources

Magnetic Field Induced by Convective Flow in Ganymede's Subsurface Ocean

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract It has been suggested that the convective flows in Ganymede's subsurface ocean can generate a magnetic field that is strong enough to be measured by future space missions. Here, we investigate this hypothesis by developing a numerical model of Ganymede's magnetic field induced by the motion of salt water in its interior.
L. Šachl, J. Kvorka, O. Čadek, J. Velímský   +3 more
wiley   +1 more source

UVS Observations of Ganymede's Aurora During Juno Orbits 34 and 35

Geophysical Research Letters, 2022
On 7 June 2021, Juno‐UVS mapped Ganymede's auroral emissions near a closest approach altitude of 1,046 km. The high spatial resolution map exhibits bright, 200–1,000 R, oxygen emissions organized into northern and southern auroral ovals.
T. K. Greathouse, G. R. Gladstone, P. M. Molyneux, M. H. Versteeg, V. Hue, J. A. Kammer, M. W. Davis, S. J. Bolton, R. S. Giles, J. E. P. Connerney, J.‐C. Gerard, D. C. Grodent, B. Bonfond, J. Saur, S. Duling   +14 more
doaj   +1 more source

The Origin of Enhanced Activity in the Suns of M67

, 2009
We report the results of the analysis of high resolution photospheric line spectra obtained with the UVES instrument on the VLT for a sample of 15 solar-type stars selected from a recent survey of the distribution of H and K chromospheric line strengths ...
A. Reiners, Allain, Barnes, Bouvier, Giampapa, Gray, Kurucz, Lockwood, M. S. Giampapa, Radick   +9 more
core   +1 more source

The Earth transiting the Sun as seen from Jupiter's moons: detection of an inverse Rossiter-McLaughlin effect produced by the Opposition Surge of the icy Europa [PDF]

, 2015
We report on a multi-wavelength observational campaign which followed the Earth's transit on the Sun as seen from Jupiter on 5 Jan the 2014. Simultaneous observations of Jupiter's moons Europa and Ganymede obtained with HARPS from La Silla, Chile, and ...
Barbieri, Mauro, Lovis, Christophe, Molaro, Paolo, Monaco, Lorenzo, Zaggia, Simone   +4 more
core   +2 more sources

Motional Induction in Ganymede's Ocean

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract We investigate the magnetic signature of oceanic circulation in Ganymede's subsurface ocean using kinematic induction modeling. Our approach couples zonal jet flows from rotating thermal convection simulations with magnetic field models incorporating Ganymede's internal dynamo and external contributions from Jupiter.
Simon Cabanes, Thomas Gastine, Alexandre Fournier   +2 more
wiley   +1 more source

New Results From Galileo's First Flyby of Ganymede: Reconnection‐Driven Flows at the Low‐Latitude Magnetopause Boundary, Crossing the Cusp, and Icy Ionospheric Escape

Geophysical Research Letters, 2018
On 27 June 1996, the NASA Galileo spacecraft made humanity's first flyby of Jupiter's largest moon, Ganymede, discovering that it is the only moon known to possess an internally generated magnetic field. Resurrecting the original Galileo Plasma Subsystem
Glyn Collinson, William R. Paterson, Christopher Bard, John Dorelli, Alex Glocer, Menelaos Sarantos, Rob Wilson   +6 more
doaj   +1 more source