Results 71 to 80 of about 129,106 (151)

Tracing the Source of Carbon Oxides on the Large Moons of Uranus

The Planetary Science Journal
The Uranian moons Ariel, Umbriel, Titania, and Oberon are enriched in CO _2 mixed with CO, but the origin(s) of these carbon oxides, be they primarily native or radiolytic, remain(s) uncertain.
Richard J. Cartwright, Sasha Cryan, Rosario Brunetto, Apolline Leclef, Eric Quirico, Bryan J. Holler, William M. Grundy, Tom A. Nordheim, Ujjwal Raut, Matthew M. Hedman, Riley A. DeColibus, Chloe B. Beddingfield, Marc Neveu, Christopher R. Glein, Sara Faggi, Geronimo L. Villanueva, Noemi Pinilla-Alonso, Stephanie M. Menten   +17 more
doaj   +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

Autonomous control of a reconfigurable constellation of satellites on geostationary orbit with artificial potential fields [PDF]

, 2012
This paper presents a method of controlling a constellation of small satellites in Geostationary Earth Orbit (GEO) such that the constellation is able to reconfigure - changing the angular position of its members relative to the Earth’s surface in order ...
Colombo, Camilla, McInnes, Colin, Mushet, Garrie   +2 more
core   +3 more sources

Additional Maps and Stereo Images for the Uranian Satellites from Topography and geology of uranian mid-sized icy satellites in comparison with Saturnian and Plutonian satellites

, 2020
Additional Maps for the Uranian Satellites are provided in simple cylindrical format. Stereo anaglyph images are also included for 3 of these satellites.
Schenk, Paul Michael, Moore, Jeffrey M.
openaire   +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

Constraining Ocean and Ice Shell Thickness on Miranda from Surface Geological Structures and Stress Modeling

The Planetary Science Journal
Images from the Voyager 2 mission revealed the small Uranian satellite Miranda to be a complex, dynamic world. This is exemplified by signs of recent geological activity, including an extensive fault system and the mysterious coronae.
Caleb Strom, Tom A. Nordheim, D. Alex Patthoff, Sherry K. Fieber-Beyer   +3 more
doaj   +1 more source

Leveraging Ceres to Gain Insights into the Candidate Ocean Worlds of Umbriel and Oberon That Orbit Uranus

The Planetary Science Journal
Ceres, located in the asteroid belt, exhibits intriguing parallels with two of the large Uranian satellites: Umbriel and Oberon. These similarities include size, bulk compositions, and dominantly radiogenic internal heat sources.
Jennifer E. C. Scully, C. Adeene Denton, Julie C. Castillo-Rogez, Michael M. Sori, Erin J. Leonard, Chloe Beddingfield, Richard Cartwright, Catherine M. Elder, Karl L. Mitchell, Tom A. Nordheim   +9 more
doaj   +1 more source

Thermal Oxidation Reaction between NH3 and O3: Low-temperature Formation of an -bearing Salt

The Planetary Science Journal
NH _3 has long been predicted to be an important component of outer solar system bodies, yet detection of this compound suggests a low abundance or absence on many objects where it would be expected. Here, we demonstrate that a thermally driven oxidation
Patrick D. Tribbett, Mark J. Loeffler
doaj   +1 more source

Plasma Environment, Radiation, Structure, and Evolution of the Uranian System (PERSEUS): A Dedicated Orbiter Mission Concept to Study Space Physics at Uranus. [PDF]

Space Sci Rev, 2023
Cohen IJ, Smith EJ, Clark GB, Turner DL, Ellison DH, Clare B, Regoli LH, Kollmann P, Gallagher DT, Holtzman GA, Likar JJ, Morizono T, Shannon M, Vodusek KS.   +13 more
europepmc   +1 more source

Titania’s Deuterium Abundance and the Origin of Its Water

The Planetary Science Journal
Models of our solar system’s protoplanetary disk account for processes such as the infall of water–ice-rich grains from the surrounding molecular cloud, the reprocessing of some infalling water–ice in the hot inner disk, and water’s outward migration in ...
Stephen C. Tegler, Richard J. Cartwright, William M. Grundy, Bryan J. Holler, William A. Burris, Mark J. Loeffler, Christopher R. Glein, Ryan D. Wochner, Samantha H. Hemmelgarn   +8 more
doaj   +1 more source