Results 41 to 50 of about 33,171 (317)
The Upper Atmosphere of Uranus from Stellar Occultations. I. Methods and Validation
The Planetary Science Journal, 2023 Measurements made by the Voyager 2 spacecraft during its flybys of Uranus in 1986 found warm stratospheric and hot thermospheric temperatures that cannot be explained by solar energy alone.
William R. Saunders +4 more
doaj +1 more source
Convective storms and atmospheric vertical structure in Uranus and Neptune. [PDF]
Philos Trans A Math Phys Eng Sci, 2020 The ice giants Uranus and Neptune have hydrogen-based atmospheres with several constituents that condense in their cold upper atmospheres. A small number of bright cloud systems observed in both planets are good candidates for moist convective storms ...
Hueso R, Guillot T, Sánchez-Lavega A.
europepmc +3 more sources
Auroral emissions from Uranus and Neptune. [PDF]
Philos Trans A Math Phys Eng Sci, 2020 Uranus and Neptune possess highly tilted/offset magnetic fields whose interaction with the solar wind shapes unique twin asymmetric, highly dynamical, magnetospheres.
Lamy L.
europepmc +2 more sources
The upper atmospheres of Uranus and Neptune. [PDF]
Philos Trans A Math Phys Eng Sci, 2020 We review the current understanding of the upper atmospheres of Uranus and Neptune, and explore the upcoming opportunities available to study these exciting planets.
Melin H.
europepmc +3 more sources
Uranus’s and Neptune’s Stratospheric Water Abundance and Vertical Profile from Herschel-HIFI
The Planetary Science Journal, 2022 Here we present new constraints on Uranus’s and Neptune’s externally sourced stratospheric water abundance using disk-averaged observations of the 557 GHz emission line from Herschel’s Heterodyne Instrument for the Far-Infrared.
N. A. Teanby +4 more
doaj +1 more source
Where are the Uranus Trojans? [PDF]
Celestial Mechanics and Dynamical Astronomy, 2010 15 pages, 12 figures, submitted to ...
Ákos Bazsó +2 more
openaire +5 more sources
Uranus and Neptune: Origin, Evolution and Internal Structure [PDF]
Space Science Reviews, 2019 There are still many open questions regarding the nature of Uranus and Neptune, the outermost planets in the Solar System. In this review we summarize the current-knowledge about Uranus and Neptune with a focus on their composition and internal structure,
R. Helled, N. Nettelmann, T. Guillot
semanticscholar +1 more source
Thermal and Tidal Evolution of Uranus with a Growing Frozen Core
The Planetary Science Journal, 2021 The origin of the very low luminosity of Uranus is unknown, as is the source of the internal tidal dissipation required by the orbits of the Uranian moons.
L. Stixrude, S. Baroni, F. Grasselli
semanticscholar +1 more source
Evidence of a Polar Cyclone on Uranus From VLA Observations
Geophysical Research Letters, 2023 We present observations of Uranus in northern spring with the Very Large Array from 0.7 to 5 cm. These observations reveal details in thermal emission from Uranus' north pole at 10s of bars, including a dark collar near 80°N and a bright spot at the ...
Alex Akins +6 more
doaj +1 more source
The Deep Composition of Uranus and Neptune from In Situ Exploration and Thermochemical Modeling [PDF]
Space Science Reviews, 2020 The distant ice giants of the Solar System, Uranus and Neptune, have only been visited by one space mission, Voyager 2. The current knowledge on their composition remains very limited despite some recent advances.
T. Cavali'e +9 more
semanticscholar +1 more source