Results 181 to 190 of about 208,249 (317)
Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.Abstract Certain spiral density waves in Saturn's rings are generated through resonances with planetary normal modes, making them valuable probes of Saturn's internal structure. Previous research has primarily focused on the rotation rates of these waves. However, other characteristics of these waves also contain valuable information about the planet's
V. M. Afigbo +6 more
wiley +1 more source
Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.Abstract The prospect that the five major moons of Uranus could host subsurface oceans makes them high‐priority targets for future exploration. Different techniques can be used to search for deep oceans in these objects. Here, we focus on ocean detection and characterization from measurements of the moons' response to the gravitational tides and ...
Flavio Petricca +3 more
wiley +1 more source
Probing Lorentz Invariance Violation with Absorption of Astrophysical γ-Rays by Solar Photons
The Astrophysical JournalWe compute in detail the absorption optical depth for astrophysical γ -ray photons interacting with solar photons to produce electron–positron pairs. This effect is greatest for γ -ray sources at small angular distances from the Sun, reaching optical ...
Justin D. Finke, Parshad Patel
doaj +1 more source
The LHAASO experiment: from Gamma-Ray Astronomy to Cosmic Rays [PDF]
, 2016 G. Sciascio
semanticscholar +1 more source
Gravity and Magnetic Field Signatures in Hydrothermally Affected Regions on Mars
Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.Abstract Multiple lines of evidence indicate that liquid water‐rock interactions occurred on ancient Mars, particularly within the crust, where hydrothermal systems have been hypothesized. Such hydrothermal circulation (HC) can significantly lower temperatures in the crust, thereby restricting the viscoelastic relaxation of impact craters. Craters with
Anna Mittelholz +3 more
wiley +1 more source
Radio Science, Volume 60, Issue 4, April 2025.Abstract During daylight hours, the concentration of electrons in the ionosphere can be amplified by solar flares, which may subsequently influence the propagation of radio waves. Previous research on Very Low Frequency (VLF) signals focused on X‐class and M‐class flares.
Y. Liu, M. Füllekrug
wiley +1 more source
Fresnel lenses for x-ray and gamma-ray astronomy [PDF]
, 2004 G. Skinner +3 more
openalex +1 more source
Nowcasting Solar Energetic Particle Events for Mars Missions
Space Weather, Volume 23, Issue 4, April 2025.Abstract In addition to the omnipresent Galactic Cosmic Rays, sudden Solar Energetic Particle (SEP) events present considerable health hazards for manned space missions. These events not only contribute to an increased long‐term cancer risk, but can, in extreme cases, cause acute radiation syndromes.
Jan Leo Löwe +10 more
wiley +1 more source