Results 151 to 160 of about 973 (226)

A New Strategy for Improving Multi‐Frequency PPP‐RTK Ionospheric Correction Availability and User Performance in Low‐ and Middle‐Latitudes

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract High‐precision regional ionospheric correction products are essential for achieving accurate and fast‐convergence solutions in Precise Point Positioning Real‐Time Kinematic (PPP‐RTK). For users in low‐ and middle‐latitudes, PPP‐RTK server narrow‐lane (NL) ambiguity resolution (AR) typically requires more than 10 min, which largely affects the ...
Pan Li   +6 more
wiley   +1 more source

Origins and lifetimes of secular and tidal bars in simulated disc galaxies. [PDF]

open access: yesMon Not R Astron Soc
Frosst M   +3 more
europepmc   +1 more source

Mastcam‐Z Spectrophotometric Properties of Materials at the Van Zyl Overlook, Jezero Crater

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract During Sols 63–65 of Mars 2020, Mastcam‐Z multispectral (442–1022 nm) images were acquired at Van Zyl Overlook (VZO), spanning phase angles from ∼0° to 150°, to model photometric parameters for seven surface units. These units included rocks, soils, regolith, and rover tracks near the Jezero landing site.
B. Margara   +6 more
wiley   +1 more source

Screened axio-dilaton cosmology: novel forms of early dark energy. [PDF]

open access: yesEur Phys J C Part Fields
Smith A   +4 more
europepmc   +1 more source

New High Precision Measurements of Apollo Samples: 0.3–5 GHz Complex Refractive Indices

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Active and passive radar techniques provide information on the subsurface structure and history of planetary bodies. However, interpretations of radar data are limited by our understanding of the complex dielectric permittivity and magnetic permeability of the surface material.
P. Linton   +15 more
wiley   +1 more source

Thermal Escape of Atomic Hydrogen on Mars: A Comprehensive View With a General Circulation Model

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Mars loses water mainly through the photodissociation of water vapor, followed by the thermal escape of light hydrogen atoms. Observations have revealed large seasonal variations in hydrogen concentration in the upper thermosphere, peaking during southern summers and intensifying during dust storms.
Alexander S. Medvedev, Ngan H. D. Trinh
wiley   +1 more source

Simulations of multi-phase gas in and around galaxies. [PDF]

open access: yesLiving Rev Comput Astrophys
Gronke M, E Schneider E.
europepmc   +1 more source

Thermal Effects of Gravity Waves in Planetary Atmospheres

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Internal atmospheric acoustic‐gravity waves substantially drive the global dynamical, thermal, and compositional structure of planetary atmospheres. While the dynamical effects of acoustic‐gravity waves have been extensively studied, especially on Earth and Mars, their thermal effects are insufficiently explored in planetary atmospheres.
Erdal Yiğit
wiley   +1 more source

Kinetic Jeans instability in FOG framework. [PDF]

open access: yesSci Rep
Das M, Atteya A, Karmakar PK.
europepmc   +1 more source

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