Results 71 to 80 of about 265 (182)

New Polarimetric Data for the Galilean Satellites: Io and Ganymede Observations and Modeling

The Planetary Science Journal
New high-precision disk-integrated measurements of the polarization of Io and Ganymede in the UBVRI bands are presented. The observations were obtained using polarimeters mounted on the Crimean Astrophysical Observatory and the Peak Terskol Observatory ...
Nikolai Kiselev, Vera Rosenbush, Ari Leppälä, Karri Muinonen, Ludmilla Kolokolova, Aleksandr Savushkin, Nikolai Karpov   +6 more
doaj   +1 more source

Spectroscopic Detection of Biosignatures in Natural Ice Samples as a Proxy for Icy Moons. [PDF]

Life (Basel), 2023
Calapez F, Dias R, Cesário R, Gonçalves D, Pedras B, Canário J, Martins Z.   +6 more
europepmc   +1 more source

Pwyll and Manannán Craters as a Laboratory for Constraining Irradiation Timescales on Europa

The Planetary Science Journal
We examine high-spatial-resolution Galileo/Near-Infrared Mapping Spectrometer observations of the young (∼1 My–∼20 My) impact features, Pwyll and Manannán craters, on Europa’s trailing hemisphere in an effort to constrain irradiation timescales.
M. Ryleigh Davis, Michael E. Brown
doaj   +1 more source

Formation and Survival of Complex Organic Molecules in the Jovian Circumplanetary Disk

The Planetary Science Journal
Europa, Ganymede, and Callisto are key targets in the search for habitability due to the potential presence of subsurface oceans. Detecting complex organic molecules (COMs), essential for prebiotic chemistry, is crucial to assessing their potential ...
Olivier Mousis, Clément Petetin, Tom Benest Couzinou, Antoine Schneeberger, Yannis Bennacer   +4 more
doaj   +1 more source

Juno's Close Encounter With Ganymede-An Overview. [PDF]

Geophys Res Lett, 2022
Hansen CJ, Bolton S, Sulaiman AH, Duling S, Bagenal F, Brennan M, Connerney J, Clark G, Lunine J, Levin S, Kurth W, Mura A, Paranicas C, Tosi F, Withers P.   +14 more
europepmc   +1 more source

Potential Cryovolcanic Regions on Ganymede: A Priority Target for JUICE

The Planetary Science Journal
One of the Jupiter Icy Moons Explorer (JUICE) mission goals of the European Space Agency, launched in 2023 April, is the detailed characterization of Ganymede, Jupiter’s largest moon and a confirmed ocean world.
Anezina Solomonidou, Christos Ntinos, Katrin Stephan, Federico Tosi, Michael Malaska, Athena Coustenis, Sébastien Rodriguez, Rosaly M. C. Lopes, Alice Lucchetti, Giuseppe Mitri, Klara Kalousova, Martin Valenti, Olivier Witasse   +12 more
doaj   +1 more source

The Bombardment History of the Giant Planet Satellites

The Planetary Science Journal
The origins of the giant planet satellites are debated, with scenarios including formation from a protoplanetary disk, sequential assembly from massive rings, and recent accretion after major satellite–satellite collisions.
William F. Bottke, David Vokrouhlický, David Nesvorný, Raphael Marschall, Alessandro Morbidelli, Rogerio Deienno, Simone Marchi, Michelle Kirchoff, Luke Dones, Harold F. Levison   +9 more
doaj   +1 more source

Hydrogen peroxide at the poles of Ganymede. [PDF]

Sci Adv, 2023
Trumbo SK, Brown ME, Bockelée-Morvan D, de Pater I, Fouchet T, Wong MH, Cazaux S, Fletcher LN, de Kleer K, Lellouch E, Mura A, Poch O, Quirico E, Rodriguez-Ovalle P, Showalter MR, Tiscareno MS, Tosi F.   +16 more
europepmc   +1 more source

Rigid-body Numerical Integration of Io’s Physical Libration Under Multibody Perturbations

The Astronomical Journal
This study investigates the spin–orbit coupling of natural satellites, focusing on Io’s libration as a means of probing its internal structure and tidal responses.
Lidan Zhang, Zhen Zhong, Jianguo Yan, Zhen Yang, Jean-Pierre Barriot   +4 more
doaj   +1 more source

Energy and Temperature Dependencies for Electron-induced Sputtering from H2O Ice: Implications for the Icy Galilean Moons

The Planetary Science Journal
To better assess the role that electrons play in exosphere production on icy bodies, we measured the total and O _2 sputtering yields from H _2 O ice for electrons with energies between 0.75 and 10 keV and temperatures between 15 and 124.5 K.
Rebecca A. Carmack, Mark J. Loeffler
doaj   +1 more source