Results 31 to 40 of about 11,862 (238)

Possible In Situ Formation of Uranus and Neptune via Pebble Accretion [PDF]

open access: yesAstrophysical Journal, 2022
The origin of Uranus and Neptune is still unknown. In particular, it has been challenging for planet formation models to form the planets in their current radial distances within the expected lifetime of the solar nebula.
C. Valletta, R. Helled
semanticscholar   +1 more source

Comparative Study on Planetary Magnetosphere in the Solar System

open access: yesSensors, 2020
The magnetospheric responses to solar wind of Mercury, Earth, Jupiter and Uranus are compared via magnetohydrodynamic (MHD) simulations. The tilt angle of each planetary field and the polarity of solar wind are also considered.
Ching-Ming Lai, Jean-Fu Kiang
doaj   +1 more source

Modelling the seasonal cycle of Uranus’s colour and magnitude, and comparison with Neptune

open access: yesMonthly notices of the Royal Astronomical Society, 2023
We present a quantitative analysis of the seasonal record of Uranus’s disc-averaged colour and photometric magnitude in Strömgren b and y filters (centred at 467 and 551 nm, respectively), recorded at the Lowell Observatory from 1950 to 2016, and ...
P. Irwin   +11 more
semanticscholar   +1 more source

A Numerical Investigation of the Berg Feature on Uranus as a Vortex-Driven System

open access: yesAtmosphere, 2020
The Berg cloud feature in the atmosphere of Uranus was first identified as a persistent grouping of clouds located just off the bright South Polar Collar at a latitude of around −34 degrees.
Raymond LeBeau   +4 more
doaj   +1 more source

Uranus ring occultation observations: 1977–2006

open access: yesIcarus (New York, N.Y. 1962), 2023
The Uranian rings were discovered serendipitously on 10 March 1977 during a stellar occultation (Elliot et al., 1977a; Millis et al., 1977), and a rich set of subsequent Earth-based occultations revealed that these narrow and sharp-edged rings were ...
R. French   +27 more
semanticscholar   +1 more source

Modeling of Mach-Zehnder Interferometric Sensors Employing Ring-Resonator Circuits for Slow-Light Enhancement

open access: yesIEEE Photonics Journal, 2023
The performance of symmetric Mach-Zehnder interferometric (MZI) sensor employing ring-resonator circuits for slow-light enhancement of the sensor performance was theoretically investigated.
Henri P. Uranus
doaj   +1 more source

Crater Distributions of Uranus's Mid-sized Satellites and Implications for Outer Solar System Bombardment

open access: yesThe Planetary Science Journal, 2022
Outer solar system impact bombardment is largely unconstrained. Although recent data from the Jupiter, Saturn, and Pluto systems have produced new constraints, analysis is incomplete without inclusion of the Uranus system.
M. Kirchoff   +3 more
semanticscholar   +1 more source

Thermal evolution of Uranus and Neptune [PDF]

open access: yesAstronomy & Astrophysics, 2021
Thermal evolution models suggest that the luminosities of both Uranus and Neptune are inconsistent with the classical assumption of an adiabatic interior.
L. Scheibe, N. Nettelmann, R. Redmer
semanticscholar   +1 more source

The Magnetosphere of Uranus [PDF]

open access: yesInternational Astronomical Union Colloquium, 1982
The magnetosphere of a planet, as the name implies, is the region surrounding the planet in which the planetary magnetic field plays a dominant role in determining the behaviour of the medium. The inner boundary of a magnetosphere is the surface of the planet if it has no significant atmosphere (as in the case of Mercury), or the lower ionosphere in ...
openaire   +2 more sources

Superionic Silica-Water and Silica-Hydrogen Compounds in the Deep Interiors of Uranus and Neptune. [PDF]

open access: yesPhysical Review Letters, 2021
Silica, water, and hydrogen are known to be the major components of celestial bodies, and have significant influence on the formation and evolution of giant planets, such as Uranus and Neptune.
Hao Gao   +8 more
semanticscholar   +1 more source

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