Results 181 to 190 of about 1,487 (218)

Revealing an unexpectedly low electron injection threshold via reinforced shock acceleration. [PDF]

Nat Commun
Raptis S, Lalti A, Lindberg M, Turner DL, Caprioli D, Burch JL.   +5 more
europepmc   +1 more source

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

Journal 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

Spectral Characterization of CO2‐H2O Ice Layering Under Controlled Mars Polar Conditions as Laboratory Analogs for Seasonal Cap Activity

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Seasonal CO2 and H2O ice blanket the Martian polar caps, and their spectral contributions mix during seasonal evolution. Particularly in late northern winter, the spectral signature of H2O ice obscures that of CO2 ice. Using the MARVIN chamber at York University, we produced controlled analogs of layered polar ice under Mars‐like pressure (∼6 ...
Jamie A. Isen, Andrej Stojanovic, Wendy M. Calvin, Isaac B. Smith   +3 more
wiley   +1 more source

Optically induced quantum transitions in direct probed mesoscopic NbSe₂ for prototypical bolometers. [PDF]

iScience
Jayanand K, Saenz GA, Krylyuk S, Davydov AV, Karapetrov G, Liu Z, Zhou W, Kaul AB.   +7 more
europepmc   +1 more source

Solar Energetic Particle Prediction in the Inner Heliosphere Using Deep Learning and PSP/IS⊙IS Data

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Solar events, such as coronal mass ejections and solar flares, accelerate large numbers of energetic charged particles, producing solar energetic particle (SEP) events that can harm astronauts, damage satellites, and potentially damage infrastructure on Earth.
Tate Hutchins, Spiridon Kasapis, Hameedullah Farooki, Manuel E. Cuesta, Lengying Khoo, Sungmin Pak, Robert Czarnota, Jamie Rankin, Jamey Szalay, Zigong Xu, Georgios Livadiotis, Nikolaos Sarlis, David McComas   +12 more
wiley   +1 more source

Investigation of Field Emission Properties of Carbon Nanotube Arrays of Different Morphologies. [PDF]

Nanomaterials (Basel)
Chumak MA, Shchegolkov AV, Popov EO, Filippov SV, Kolosko AG, Shchegolkov AV, Babaev AA.   +6 more
europepmc   +1 more source

A Unified Vector Electromagnetic Framework for Ionospheric Scintillation and Polarization Effects in GNSS

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The ionosphere imposes coupled amplitude, phase, and polarization distortions on trans‐ionospheric Global Navigation Satellite System (GNSS) signals, reflecting the structure and dynamics of electron‐density irregularities. Classical weak‐scatter theory provides a mature framework for interpreting amplitude and phase scintillation, but these ...
T. Durgonics, S. S. Beeck
wiley   +1 more source

Magnetic, thermal and rotational evolution of isolated neutron stars. [PDF]

Living Rev Comput Astrophys
Pons JA, Dehman C, Viganò D.
europepmc   +1 more source

Development and Deployment of the Smart Active Ionising Radiation at Altitude (SAIRA) Instruments for Space Weather Applications

Space Weather, Volume 24, Issue 6, June 2026.
Abstract This paper introduces the latest generation of airborne ionising radiation monitors, developed at the Surrey Space Centre (SSC) as part of the United Kingdom's (UK's) Space Weather Instrumentation, Measurement, Modeling and Risk (SWIMMR) program.
B. Clewer, P. Morris, K. Ryden, J. O’Neill, F. Lei, F. Baird, C. Davis, C. Dyer   +7 more
wiley   +1 more source

The band gap characteristic of a double-leaf acoustic black hole coupled with rotatable local resonance structure. [PDF]

iScience
Shu K, Sun X, Wu J, Shen Y, Chen Y.
europepmc   +1 more source