Results 141 to 150 of about 66,780 (247)

Ozone Production by Electron Irradiation of Regolith Ice: Laboratory Study for the Icy Moons

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract We irradiate fine‐grained regolith pure water ice in ultra high vacuum with 5keV $5\,\text{keV}$ and 10keV $10\,\text{keV}$ electrons to study the radiolysis of water ice. The ice regolith is designed to closely mimic the physical characteristics of the surfaces of the icy moons of the Solar System.
Lorenzo Obersnel, André Galli, Rico G. Fausch, Rafael Ottersberg, Peter Wurz   +4 more
wiley   +1 more source

Improved Astrophysical and Computational Oscillator Strengths for Ultraviolet P ii Lines

The Astrophysical Journal
Abundance measurements for the volatile element phosphorus are important for measuring the metallicity in interstellar and circumgalactic gas, where their accuracies are limited by uncertainties in the oscillator strengths.
Frances H. Cashman, Romas Kisielius, Varsha P. Kulkarni, Rasa Karpuškienė, Fatima Elkhatib   +4 more
doaj   +1 more source

Challenges on Ultraviolet Astronomy 2014 [PDF]

, 2014
Ana I. Gómez de Castro, B. Barbuy, Jorge Melnick, N. Brosch, Mikhail Sachkov   +4 more
openalex   +1 more source

Segmentation and Tracking of Eruptive Solar Phenomena With Convolutional Neural Networks

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Solar eruptive events are complex phenomena, which most often include coronal mass ejections (CME), CME‐driven compressive and shock waves, flares, and filament eruptions. CMEs are large eruptions of magnetized plasma from the Sun's outer atmosphere or corona, that propagate outward into the interplanetary space.
Oleg Stepanyuk, Kamen Kozarev
wiley   +1 more source

Addressing Known Challenges in Solar Flare Forecasting I: Limb‐Flare Prediction With a 4π Full‐Heliosphere Framework

Space Weather, Volume 24, Issue 2, February 2026.
Abstract A demonstrated failure mode for operational solar flare forecasting is the inability to forecast flares that occur near, or just beyond, the solar limb. To address this shortcoming, we develop a “4π $4{\uppi }$” full‐heliosphere event forecasting framework and evaluate its statistical classification ability against this specific challenge.
K. D. Leka, Eric L. Wagner, Lisa Upton, Bibhuti Kumar Jha, Kiran Jain, Sara Petty   +5 more
wiley   +1 more source

Deep Swift/UVOT Observations of GOODS-N and the Evolution of the Ultraviolet Luminosity Function at 0.2 < z < 1.2

The Astrophysical Journal
We present Swift Ultraviolet Optical Telescope (UVOT) observations of the deep field GOODS-N in four near-UV filters. A catalog of detected galaxies is reported, which will be used to explore galaxy evolution using UV emission.
Alexander Belles, Caryl Gronwall, Michael H. Siegel, Robin Ciardullo, Mat J. Page   +4 more
doaj   +1 more source

A simulation of the instrument pointing system for the Astro-1 mission [PDF]

NASA has recently completed a shuttle-borne stellar ultraviolet astronomy mission known as Astro-1. A three axis instrument pointing system (IPS) was employed to accurately point the science instruments.
Rakoczy, J., West, M., Whorton, M.
core   +1 more source

Glancing Incidence Optics for X-Ray and Ultraviolet Astronomy [PDF]

, 1971
J. H. Underwood, W. M. Neupert, Richard B. Hoover   +2 more
openalex   +1 more source

Ultraviolet Spectrophotometer for Satellite Astronomy.

, 1964
K. L. Hallam, John R. Magnus
openalex   +2 more sources

The World Space Observatory Ultraviolet (WSO–UV), as a bridge to future UV astronomy [PDF]

, 2018
Б. М. Шустов, Almudena Castro, Mikhail Sachkov, Juan Carlos Vallejo, P. Marcos-Arenal, E. Kanev, И. С. Саванов, A. S. Shugarov, С. Г. Сичевский   +8 more
openalex   +1 more source