Results 101 to 110 of about 33,171 (317)
Consequences of Giant Impacts on Early Uranus for Rotation, Internal Structure, Debris, and Atmospheric Erosion [PDF]
Astrophysical Journal, 2018 We perform a suite of smoothed particle hydrodynamics simulations to investigate in detail the results of a giant impact on the young Uranus. We study the internal structure, rotation rate, and atmospheric retention of the post-impact planet, as well as ...
J. Kegerreis +8 more
semanticscholar +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
Selection of a common communication link geometry for Saturn, Uranus and Titan [PDF]
, 1974 Mission analysis link parametrics, considering a Pioneer baseline, are developed through launch energies, flyby radii, and trip time calculations. Projected is also a 1979 Jupiter Uranus opportunity for a derivative Mariner to fly to Uranus by using the ...
Hendricks, T.
core +1 more source
Mid-Infrared Ethane Emission on Neptune and Uranus
, 2006 We report 8- to 13-micron spectral observations of Neptune and Uranus from the NASA Infrared Telescope Facility spanning more than a decade. The spectroscopic data indicate a steady increase in Neptune's mean atmospheric 12-micron ethane emission from ...
D. K. Lynch +8 more
core +1 more source
Fast E-sail Uranus entry probe mission [PDF]
, 2014 The electric solar wind sail is a novel propellantless space propulsion concept. According to numerical estimates, the electric solar wind sail can produce a large total impulse per propulsion system mass.
Janhunen, Pekka +5 more
core +3 more sources
Compositional Convection in the Deep Interior of Uranus [PDF]
arXiv, 2021 Uranus and Neptune share properties that are distinct from the other giant planets in the solar system, but they are also distinct from one another, particularly in their relative internal heat flux. Not only does Neptune emit about ten times the amount of heat that emitted by Uranus, the relative amount of emitted heat to the energy they absorb from ...
arxiv
About influence of differential rotation in convection zone of gaseous or fluid giant Planet (Uranus) onto the parameters of orbits of satellites [PDF]
The European Physical Journal Plus volume 136, Article number: 387
(2021), 2017 Tidal interactions between Planet and its satellites are known to be the main phenomena, which are determining the orbital evolution of the satellites. We suggest in the current research to take into consideration the additional well-known effect of differential rotation which obviously takes place in the gaseous or fluid convection zone of primary ...
arxiv +1 more source
Visibility of the Satellites of Uranus [PDF]
Nature, 1876 THE question of the visibility of these satellites in telescopes of moderate dimensions has lately excited considerable attention, but it does not appear that this question can be settled by any amount of verbal discussion. I take the liberty, therefore, to propose two test objects by means of which any one can, I think, satisfy himself whether he can ...
openaire +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 +12 more
wiley +1 more source
Formation of ammonia–helium compounds at high pressure
Nature Communications, 2020 Helium is generally considered too inert to be present in giant ice planet mantles. The authors, by first-principles calculations and crystal structure searches, find stable ammonia–helium compounds at the conditions of Uranus and Neptune’s upper mantles,
Jingming Shi +5 more
doaj +1 more source