Results 61 to 70 of about 4,500 (216)

Coincident ENA and Narrowband Radio Emissions as Diagnostics of Inward Plasma Transport at Saturn

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Saturn's kilometric radiation (SKR) and Energetic Neutral Atom (ENA) emissions are important diagnostics of the planet's magnetospheric dynamics, intensifying during global plasma injections and displaying characteristic planetary periodicity. Related to the SKR emissions are myriametric narrowband radio emissions that typically appear in the ...
J. Kinrade, S. V. Badman, S. Y. Wu, C. Paranicas, C. M. Jackman, L. S. Clare, C. K. Louis   +6 more
wiley   +1 more source

Enceladus’s Tidal Heating: A Simple Approach

The Planetary Science Journal
Saturn’s moon Enceladus has a global ocean that is covered by an ice shell. The moon’s eccentric orbit forces the shell to librate, which distorts the shell and thereby generates heat.
Yoram Lithwick
doaj   +1 more source

Enceladus's internal ocean and ice shell constrained from Cassini gravity, shape, and libration data

Geophysical Research Letters, 2016
The intense plume activity at the South Pole of Enceladus together with the recent detection of libration hints at an internal water ocean underneath the outer ice shell.
Ondřej Čadek, Gabriel Tobie, Tim Van Hoolst, Marion Massé, Gaël Choblet, Axel Lefèvre, Giuseppe Mitri, Rose‐Marie Baland, Marie Běhounková, Olivier Bourgeois, Anthony Trinh   +10 more
doaj   +1 more source

Comparing Jupiter and Saturn: dimensionless input rates from plasma sources within the magnetosphere [PDF]

Annales Geophysicae, 2008
The quantitative significance for a planetary magnetosphere of plasma sources associated with a moon of the planet can be assessed only by expressing the plasma mass input rate in dimensionless form, as the ratio of the actual mass input to some ...
V. M. Vasyliūnas
doaj   +1 more source

Highly Asymmetric Magnetosphere‐Ionosphere‐Thermosphere Coupling at Uranus

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Magnetosphere‐Ionosphere‐Thermosphere (MIT) coupling is widely considered the dominant energy source responsible for maintaining the elevated thermospheric temperatures observed at the giant planets. At Uranus, the strongly tilted and asymmetric magnetic field produces a highly asymmetric magnetospheric configuration that may fundamentally ...
M. Acevski, N. Achilleos, A. Masters, C. Smith, P. I. Tiranti   +4 more
wiley   +1 more source

Enceladus: An Active Cryovolcanic Satellite

, 2009
Enceladus is one of the most remarkable satellites in the solar system, as revealed by Cassini's detection of active plumes erupting from warm fractures near its south pole.
John R. Spencer, Esposito, Larry W., Ingersoll, Andrew P., Christopher P. McKay, J. Hunter Waite, Barr, Amy C., Andrew P. Ingersoll, Nimmo, Francis, Ralf Jaumann, McKay, Christopher P., Francis Nimmo, Amy C. Barr, Spencer, John R., Helfenstein, Paul, Paul Helfenstein, Jaumann, Ralf, Larry W. Esposito, Waite, J. Hunter   +17 more
core   +1 more source

Water Transport from Enceladus to the Rings

The Planetary Science Journal
Enceladus continuously ejects approximately 300 kg s ^−1 of water vapor from its south polar regions, forming an extensive neutral gas torus around Saturn.
Ian-Lin Lai, Hua-Shan Shih, Wei-Ling Tseng, Wing-Huen Ip, Jong-Shinn Wu   +4 more
doaj   +1 more source

Low Frequency Extensions of Cyclotron Maser Instability‐Generated Radio Emission: A Statistical View From Cassini at Saturn

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract The Cassini spacecraft spent 13 years orbiting Saturn, quasi‐continuously measuring Saturn's radio emissions. One of the key elements of the radio spectrum at Saturn is the Saturn Kilometric Radiation (SKR), and several studies have been written on events called Low Frequency Extensions (LFEs) which represent strong, continuous extensions of ...
C. M. Jackman, A. R. Fogg, S. W. H. Cowley, G. Provan, H. Adamski, N. M. Besch, D. M. Hollman, S. Walker, M. J. Rutala, L. Lamy, C. K. Louis, E. P. O’Dwyer   +11 more
wiley   +1 more source

Ocean stratification impedes particulate transport to the plumes of Enceladus

Communications Earth & Environment
Water-vapour plumes erupting from Enceladus’ south pole provide a window into the properties of its subsurface ocean, a prime target in the search for life. However, the extent to which plume material represents conditions at Enceladus’ depths is unclear,
Flynn Ames, David Ferreira, Arnaud Czaja, Adam Masters   +3 more
doaj   +1 more source

A Machine Learning‐Based Geothermal Gradient Framework for Constraining Lithospheric Biomass

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Earth's deep subsurface hosts a large microbial biosphere, but the magnitude of lithospheric biomass remains poorly constrained due to sparse observations and uncertain thermal limits. Here, we present a physically constrained global assessment of the continental and oceanic lithospheric biomass shallower than the 122°C isotherm.
Wenyu Zhao, Harrison B. Smith, J. ZhangZhou   +2 more
wiley   +1 more source