Results 31 to 40 of about 251 (168)

An Investigation on the Apparent North‐South Asymmetry Identified in Multiple Current Sheet Crossing Events in Jovian Dawn Outer Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Jovian magnetospheric dynamics are often believed to be mainly controlled by internal elements such as Jupiter's strong and fast‐rotating magnetic moment and Io's abundant volcanic escape, as these internal elements are powerful enough to control the magnetospheric dynamics, contrary to the internal elements of the earth's magnetosphere.
Weidong Gu, Yong Wei, Zhonghua Yao, Limei Yan, Yan Xu, Binzheng Zhang   +5 more
wiley   +1 more source

Europa’s Sodium and Potassium Exosphere during Juno’s Flyby

The Planetary Science Journal
Jupiter’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, Carl Schmidt, Patrick Lierle   +2 more
doaj   +1 more source

The long-term dynamics of the Jovian irregular satellites [PDF]

Astronomy & Astrophysics, 2011
Context. The dynamical region of the Jovian irregular satellites presents an interesting web of resonances that are not yet fully understood. Of particular interest is the influence of the resonances on the stochasticity of the individual orbits of the satellites, as well as on the long-term chaotic diffusion of the different families of satellites ...
Frouard, Julien, Vienne, Alain, Fouchard, Marc   +2 more
openaire   +3 more sources

Two‐Dimensional Equilibrium Model of Planetary Magnetotail in Generalized Nonthermal Plasmas

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Solar wind‐magnetosphere interaction may result in an elongated magnetotail with stored magnetic field energy. This study presents for the first time a family of asymptotic solutions for stretched two‐dimensional magnetotail equilibrium in generalized nonthermal plasmas, including the Kappa‐like and Maxwellian‐like velocity distributions with ...
L.‐N. Hau, C.‐S. Jao, C.‐K. Chang
wiley   +1 more source

Surface Changes on Io Observed by Large Binocular Telescope/SHARK in Early 2025

The Planetary Science Journal
High spatial resolution images of the volcanic moon Io at visible and near-infrared wavelengths were obtained by the SHARK-VIS and SHARK-NIR instruments on the Large Binocular Telescope on UT 2025 February 18 and 23.
Ashley Gerard Davies, Gianluca Li Causi, Jason E. Perry, Stuart M. Jefferies, Fernando Pedichini, Dino Mesa, David A. Williams, Imke de Pater, David M. Nelson, Fabien R. Baron, Albert R. Conrad, Katherine de Kleer, Simone Antoniucci, Douglas Hope, Maria Bergomi, Francesco D’Alessio, Simone Filomeno, Tania S. Gomes Machado, Fulvio Laudisio, Luca Marafatto, Ester Marini, Roberto Piazzesi, Davide Ricci, Vincenzo Testa, Piero Vaccari, Daniele Vassallo   +25 more
doaj   +1 more source

Astrometry from mutual events of Jovian satellites in 1997 [PDF]

Astronomy & Astrophysics, 2003
Astrometric results of observations of the mutual events of the Galilean satellites of Jupiter of the PHEMU97 campaign by the Institut de Mecanique Celeste et de Calcul des Ephemerides are presented. These astrometric positions can be directly utilized in the construction of future ephemerides.
Vasundhara, R., Arlot, Jean-Eudes, Lainey, Valéry, Thuillot, William   +3 more
openaire   +3 more sources

Characterization of Mercury's Atomic and Molecular Hydrogen Exosphere and the First Detection of H2 Ions

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract From 1974 to 1975, the Mariner 10 spacecraft studied Mercury's environment during three flybys and detected hydrogen, helium, and possibly atomic oxygen in the exosphere using its ultraviolet spectrometer, but no molecular hydrogen. Based on the sensitivity of the occultation instrument, an upper limit for the H2 ${\mathrm{H}}_{2}$ surface ...
F. Weichbold, D. Schmid, H. Lammer, M. Volwerk, M. Scherf, N. V. Erkaev, A. Varsani, C. Simon Wedlund, C. Mazelle   +8 more
wiley   +1 more source

Clues to the Origin of Jovian Outer Irregular Satellites from Reflectance Spectra

The Planetary Science Journal
Visible/near-infrared narrowband spectroscopy (dispersion per element ∼ 6 Å) was obtained of the Jovian irregular satellites JVI Himalia, JVII Elara, JVIII Pasiphae, JIX Sinope, JX Lysithea, JXI Carme, JXII Ananke, and JXVII Callirrhoe in 2006, 2009, and
Faith Vilas, Amanda R. Hendrix
doaj   +1 more source

Passive Microwave Radiometry and Active Radar Sounding as Complementary Tools for Geophysical Investigations of Icy Ocean Worlds

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Juno Microwave Radiometer (MWR) observations of Europa and Ganymede offer critical insights into the icy shells of these moons ahead of NASA's Europa Clipper and ESA's JUpiter ICy moons Explorer (JUICE) missions. Both missions are equipped with active radar sounders designed to address key unknowns such as ice shell thickness, thermal state ...
Natalie S. Wolfenbarger, Anna L. Broome, Dustin M. Schroeder, Anton I. Ermakov, Scott J. Bolton, Donald D. Blankenship   +5 more
wiley   +1 more source

Ice-Ocean Exchange Processes in the Jovian and Saturnian Satellites

Space Science Reviews, 2020
A growing number of satellites in the outer solar system likely have global oceans beneath their outer icy shells. While the presence of liquid water makes these ocean worlds compelling astrobiological targets, the exchange of heat and materials between the deep interior and the surface also plays a critical role in promoting habitable environments. In
Soderlund, Krista, Kalousová, Klára, Buffo, Jacob, Glein, Christopher, Goodman, Jason, Mitri, Giuseppe, Patterson, G. Wesley, Postberg, Frank, Rovira-Navarro, Marc, Rückriemen, Tina, Saur, Joachim, Schmidt, Britney, Sotin, Christophe, Spohn, Tilman, Tobie, G., van Hoolst, Tim, Vance, Steven, Vermeersen, Bert   +17 more
openaire   +3 more sources