Results 51 to 60 of about 280 (159)

Ocean Worlds Maintained by Ocean Tidal Heat Expected on Several Uranian Moons

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract In recent NASA decadal surveys, detecting oceans among Uranus' moons has been identified as a research priority in future missions. Currently, the prevailing view in planetary science is that the likelihood of finding oceans is highest on the larger moons, Titania and Oberon, due to their higher integrals of radiogenic heat sources. This study
Robert H. Tyler
wiley   +1 more source

The 3:1 mean motion resonance between Miranda and the inner Uranian satellites, Cressida and Desdemona

, 2014
We build a simple dissipative analytical model considering an averaged restricted 3-body problem taking into account the effect of the oblateness of a planet on a small satellite and on its perturber.
Lemaitre, Anne, Verheylewegen, Emilie
core   +1 more source

Spectral Trends across the Rings and Inner Moons of Uranus and Neptune from JWST NIRCam Images

The Planetary Science Journal
JWST NIRCam images provide low-resolution spectra of the rings and inner moons orbiting Uranus and Neptune. These data reveal systematic variations in spectral parameters like the strength of the strong OH absorption band around 3 μ m and the spectral ...
M. M. Hedman, I. de Pater, R. J. Cartwright, M. El Moutamid, R. DeColibus, M. R. Showalter, M. S. Tiscareno, N. Rowe-Gurney, M. T. Roman, L. N. Fletcher, H. B. Hammel   +10 more
doaj   +1 more source

Elastic thickness and heat flux estimates for the uranian satellite Ariel [PDF]

Icarus, 2015
The surface of Ariel, an icy satellite orbiting Uranus, shows extensional tectonic features suggesting an episode of endogenic heating in the satellite's past. Using topography derived from stereo-photoclinometry, we identified flexural uplift at a rift zone suggesting elastic thickness values in the range 3.8-4.4 km. We estimate the temperature at the
Peterson, G., Nimmo, F., Schenk, P.
openaire   +3 more sources

Internal Heat Flux and Energy Imbalance of Uranus

Geophysical Research Letters, Volume 52, Issue 14, 28 July 2025.
Abstract With its extreme axial tilt, Uranus' radiant energy budget (REB) and internal heat flux remain among the most intriguing mysteries in our solar system. By combining observations with modeling, we present the global REB over a complete orbital period (1946–2030), revealing significant seasonal variations.
Xinyue Wang, Liming Li, Michael Roman, Xi Zhang, Xun Jiang, Patrick Fry, Cheng Li, Gwenael Milcareck, Agustin Sanchez‐Lavega, Santiago Perez‐Hoyos, Ricardo Hueso, Tristan Guillot, Conor Nixon, Ulyana Dyudina, Robert West, Matthew Kenyon   +15 more
wiley   +1 more source

Ariel’s Medial Grooves: Spreading Centers on a Candidate Ocean World

The Planetary Science Journal
We present evidence that Ariel's massive chasma-medial groove systems formed via spreading, where internally sourced material ascended and formed new crust.
Chloe B. Beddingfield, Richard J. Cartwright, Lauren M. Jozwiak, Tom A. Nordheim, G. Wes Patterson   +4 more
doaj   +1 more source

Variation of Model‐Predicted Reconnection Voltages Applied to Uranus' Dayside Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 130, Issue 6, June 2025.
Abstract Uranus provides a key missing piece for fundamentally understanding solar wind‐magnetospheric interactions due to its location in the outer solar system. Whether the viscous‐like interaction overtakes global magnetic reconnection as the dominant process at the magnetopause of the outer planets remains unresolved.
S. Zomerdijk‐Russell, J. M. Jasinski, A. Masters   +2 more
wiley   +1 more source

Predictions of Auroral Electron Precipitation and Joule Heating at Uranus

Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.
Abstract The precipitation of electrons and Joule heating are key processes through which energy is transferred from Uranus' magnetosphere to its upper atmosphere. These processes drive atmospheric ionization, thermospheric heating, and auroral emission at Uranus.
Daniel J. Gershman, George Clark
wiley   +1 more source

Photometric and astrometric analysis of a mutual event between the Uranian satellites Miranda and Oberon

, 2008
International audienceObservations of the predicted occultation between the satellites Miranda and Oberon were performed on 2007 July 30. Data analysis reveals that the predicted magnitude drop for this phenomenon was overestimated and we establish an ...
S.J. Bus, M. Birlan, V. Lainey, Arlot, Jean-Eudes, Lainey, Valéry, F. Colas, Nedelcu, Dan Alin, Rayner, J., Binzel, Richard P., R.P. Binzel, J. Rayner, D.A. Nedelcu, W. Thuillot, Bus, Schelte J., O. Vaduvescu, Birlan, Mirel, Vaduvescu, Ovidiu, J.‐E. Arlot, Thuillot, William, Colas, François   +19 more
core   +1 more source

Auroral and Non‐Auroral H3+ Ion Winds at Uranus With Keck‐NIRSPEC and IRTF‐iSHELL

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract To date, no investigation has documented ionospheric flows at Uranus. Previous investigations of Jupiter and Saturn have demonstrated that mapping ion winds can be used to understand ionospheric currents and how these connect to magnetosphere‐ionosphere coupling.
Emma M. Thomas, Tom S. Stallard, Henrik Melin, Mohammad N. Chowdhury, Luke Moore, James O’Donoghue, Rosie E. Johnson, Ruoyan Wang, Katie L. Knowles, Paola I. Tiranti, Neil Dello Russo, Ron J. Vervack Jr., Hideyo Kawakita   +12 more
wiley   +1 more source