Results 111 to 120 of about 1,290,320 (212)

Multi-wavelength analysis of high energy electrons in solar flares: a case study of August 20, 2002 flare

, 2005
A multi-wavelength spatial and temporal analysis of solar high energy electrons is conducted using the August 20, 2002 flare of an unusually flat (gamma=1.8) hard X-ray spectrum.
A. Asai, A. Czaykowska, A. Klassen, A. Veronig, B. R. Dennis, B. R. Dennis, Brian R. Dennis, Ch. M. Johns, D. Alexander, E. Haug, E. P. Kontar, E. Rieger, Eduard P. Kontar, F. Fárník, G. D. Holman, G. D. Holman, G. J. Hurford, G. Trottet, H. Wang, J. C. Brown, J. C. Brown, J. C. Brown, J. Heyvaerts, Jana Kašparová, L. Fletcher, M. E. Machado, M. J. Aschwanden, M. Karlický, M. Lampton, M. Piana, M. Poquerusse, Marian KarlickÝ, N. Nitta, P. Démoulin, P. Heinzel, P. J. Cargill, R. A. Schwartz, R. C. Alexander, R. C. Canfield, R. C. Puetter, R. P. Lin, R. P. Lin, Richard A. Schwartz, S. G. Benka, T. Bai, T. R. Metcalf, V. N. Melnik, Y. Uchida   +47 more
core   +1 more source

Radiation‐Resistant Aluminum Alloy for Space Missions in the Extreme Environment of the Solar System

Advanced Materials, Volume 38, Issue 20, 7 April 2026.
A novel ultrafine‐grained aluminum crossover alloy exhibits unprecedented radiation resistance and mechanical stability under extreme irradiation doses up to 100 dpa. The exceptional resilience arises from thermodynamically stable T‐phase precipitates, enabling lightweight structural materials for next‐generation spacecraft and extraterrestrial ...
Patrick D. Willenshofer, Matheus A. Tunes, Hi T. Vo, Lukas Stemper, Markus Alfreider, Oliver Renk, Graeme Greaves, Daniel Kiener, Peter J. Uggowitzer, Stefan Pogatscher   +9 more
wiley   +1 more source

Response of the Thermosphere‐Ionosphere System to an X‐Class Solar Flare: 30 March 2022 Case Study

Space Weather
The response of the thermosphere ionosphere system to an X1.3 class solar flare is studied using observations of the total electron content (TEC) and the Global Ionosphere Thermosphere Model (GITM) simulations.
Volkan Sarp, Erdal Yiğit, Ali Kilcik
doaj   +1 more source

Explosive Chromospheric Evaporation Driven by Nonthermal Electrons around One Footpoint of a Solar Flare Loop [PDF]

, 2017
We explore the temporal relationship between microwave/hard X-ray (HXR) emission and Doppler velocity during the impulsive phase of a solar flare on 2014 October 27 (SOL2014-10-27) that displays a pulse on the light curves in the microwave (34 GHz) and ...
D. Li, Z. Ning, Y. Huang, Q. M. Zhang
semanticscholar   +1 more source

Imprint of the Quasi‐Biennial Oscillation on the Ionosphere and Thermosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The Quasi‐Biennial Oscillation (QBO) is a dominant mode of stratospheric variability and is known to modulate the variability of the ionosphere‐thermosphere (IT) system. However, the extent of its influence on the ionosphere‐thermosphere system remains uncertain due to weak signals and confounding with similar periodicities in solar flux.
D. Singh, L. P. Goncharenko, S. R. Zhang
wiley   +1 more source

Evaluation of expected solar flare neutrino events in the IceCube observatory

, 2015
Since the end of the eighties and in response to a reported increase in the total neutrino flux in the Homestake experiment in coincidence with a solar flare, solar neutrino detectors have searched for solar flare signals.
de Wasseige, G., Evenson, P., Hanson, K., Klein, K. -L., van Eijndhoven, N.   +4 more
core  

Relationships between Characteristics of the Line-of-sight Magnetic Field and Solar Flare Forecasts [PDF]

, 2017
We analyze the relationship between the flare X-ray peak flux, and characteristics of the polarity inversion line (PIL) and active regions (ARs), derived from line-of-sight (LOS) magnetograms.
V. Sadykov, A. Kosovichev
semanticscholar   +1 more source

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both, Avradip Ghosh, Chin Li Cheung   +2 more
wiley   +1 more source

First Global Machine Learning Model to Predict the Rate of TEC Index (ROTI) Response to X‐Class Solar Flares

Space Weather
Solar flares are bursts of electromagnetic radiation originating in the Sun's atmosphere. Solar flares cause a rapid increase in ionization in the ionosphere, resulting in radio signal interference.
A. Mahmoudian, F. Ghorbali, M. Vazifehkhah Hafteh   +2 more
doaj   +1 more source

The solar flare environment [PDF]

Solar flare environment - solar atmosphere, photosphere, chromosphere, corona, and solar flare types, model, occurence, prediction, and ...
Roberts, W. T.
core   +1 more source