Results 81 to 90 of about 6,474 (200)

Energetic particle environment of Jupiter's radiation belts

open access: yes地球与行星物理论评
Jupiter possesses the strongest intrinsic magnetic field, the fastest rotation rate, the most volcanically active moon (Io), and the strongest radiation belts among all planets in the solar system.
Xing Cao   +6 more
doaj   +1 more source

A High-precision Dynamical Model of Callisto: Incorporating Rotation Effects within Multilayer Internal Structure Models

open access: yesThe Astrophysical Journal
China is planning to launch the “Tianwen-4” mission around the year 2030, with its aim being the exploration of Jupiter and its moon, Callisto. Within the realm of deep space exploration, the accuracy of ephemerides is of great importance.
Kai Huang   +4 more
doaj   +1 more source

On the Origin and Dynamical Evolution of Jupiter’s Moon Amalthea

open access: yesThe Astrophysical Journal
Interior to the orbits of Jupiter’s iconic Galilean moons are four small satellites with individual mean radii R  ≲ 84 km. Multiple lines of evidence suggest that these bodies formed at a more distant location in Jupiter’s circumplanetary disk before ...
Ian R. Brunton, Konstantin Batygin
doaj   +1 more source

Simulation of the Tianwen-4 Mission Contribution to Jupiter Gravity Field Improvement

open access: yesThe Astrophysical Journal
This study comprehensively evaluates the impact of the expected Chinese Tianwen-4 mission, in conjunction with the existing data from the Juno mission, on enhancing the understanding of Jupiter’s gravity field.
Zohaib Afzal   +6 more
doaj   +1 more source

Ion cyclotron waves: a tool for characterizing neutral particle profiles in extended exospheres

open access: yesFrontiers in Astronomy and Space Sciences
Planetary exospheres are usually observed using transit spectroscopic methods, such as the Lyman-α line, which is mainly limited by interstellar medium absorption and airglow contamination from the geocorona when using low-orbit space telescopes or ...
Helmut Lammer   +6 more
doaj   +1 more source

Asteroids in the Inner Solar System I - Existence

open access: yes, 2000
Ensembles of in-plane and inclined orbits in the vicinity of the Lagrange points of the terrestrial planets are integrated for up to 100 million years.
Evans   +32 more
core   +2 more sources

Spectral Decomposition Reveals Surface Processes on Europa

open access: yesThe Astrophysical Journal
Competing processes shape Europa’s surface: geological activity replenishes material through resurfacing, while bombardment by charged particles alters surface chemical composition. Each process leaves distinct spectral signatures.
Gideon Yoffe, Sahar Shahaf
doaj   +1 more source

Monte Carlo Calculation of Electron Energy Degradation in a Pure O2 Atmosphere

open access: yesThe Astrophysical Journal
Electron degradation serves as a significant energy source in planetary upper atmospheres. In this study, a Monte Carlo model is constructed to investigate the degradation of electrons in a pure O _2 atmosphere under the local approximation. Both elastic
Yangxin Ni   +4 more
doaj   +1 more source

Galileo dust data from the jovian system: 2000 to 2003

open access: yes, 2009
The Galileo spacecraft was orbiting Jupiter between Dec 1995 and Sep 2003. The Galileo dust detector monitored the jovian dust environment between about 2 and 370 R_J (jovian radius R_J = 71492 km).
A.L. Graps   +78 more
core   +1 more source

Carbonaceous Chondrite-like Compositions for Proposed Captured Trans-Neptunian Objects Justitia and Pompeja

open access: yesThe Astrophysical Journal Letters
Red spectral slopes (i.e. increasing reflectance with increasing wavelength) and featureless 0.5–2.5 μ m spectra are often associated with the presence of organic material, and there is a sense that the redder the slope, the more organic material is ...
Andrew S. Rivkin   +3 more
doaj   +1 more source

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