Results 111 to 120 of about 1,165,809 (269)

Numerical examination of plasmoid-induced reconnection model for solar flares: the relation between plasmoid velocity and reconnection rate

open access: yes, 2008
The plasmoid-induced-reconnection model explaining solar flares based on bursty reconnection produced by an ejecting plasmoid suggests a possible relation between the ejection velocity of a plasmoid and the rate of magnetic reconnection.
Carmichael   +37 more
core   +1 more source

The Impact of the 2024 Mother's Day Storm on Aircraft Surveillance Across Europe

open access: yesSpace Weather, Volume 23, Issue 12, December 2025.
Abstract The Mother's day storm from 10–13 May 2024 is one of the most extreme space weather events recorded in recent decades and triggered a strong ionospheric response with various impacts on communication and navigation systems. In this study the impact on the aviation sector, and more specifically air traffic management, is investigated with ...
Erik Schmölter, Jens Berdermann
wiley   +1 more source

Statistical Studies of Solar White-light Flares and Comparisons with Superflares on Solar-type Stars [PDF]

open access: yes, 2017
Recently, many superflares on solar-type stars have been discovered as white-light flares (WLFs). The statistical study found a correlation between their energies (E) and durations (τ): , similar to those of solar hard/soft X-ray flares, . This indicates
K. Namekata   +11 more
semanticscholar   +1 more source

Quantification of Perturbation to the Daytime Lower Ionosphere From a Gamma Ray Burst Using ELF Remote Sensing

open access: yesGeophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract On 9 October 2022, a powerful gamma ray burst (GRB), GRB221009A, caused significant changes in the electron density of the lower ionosphere, as evidenced by VLF (3–30 kHz) radio wave observations. However, GRB221009A did not yield any observable signatures at the Schumann resonances (∼8, ∼14 Hz), which are also sensitive to the lower ...
M. Gołkowski   +8 more
wiley   +1 more source

Analyses of Flight Time During Solar Proton Events and Solar Flares [PDF]

open access: green, 2022
Xinhai Xu   +19 more
openalex   +1 more source

Ionospheric effects of the extreme solar activity of February 1986 [PDF]

open access: yes
During February 1986, near the minimum of the 11 year Solar sunspot cycle, after a long period of totally quiet solar activity (R sub z = 0 on most days in January) a period of a suddenly enhanced solar activity occurred in the minimum between solar ...
Boska, J., Pancheva, D.
core   +1 more source

Quasi-Periodic Pulsations in Solar Flares: new clues from the Fermi Gamma-Ray Burst Monitor

open access: yes, 2011
In the last four decades it has been observed that solar flares show quasi-periodic pulsations (QPPs) from the lowest, i.e. radio, to the highest, i.e. gamma-ray, part of the electromagnetic spectrum.
A. J. van der Horst   +57 more
core   +1 more source

GLOBAL ENERGETICS OF SOLAR FLARES. II. THERMAL ENERGIES [PDF]

open access: yes, 2015
We present the second part of a project on the global energetics of solar flares and coronal mass ejections that includes about 400 M- and X-class flares observed with the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO ...
M. Aschwanden   +5 more
semanticscholar   +1 more source

Exploring Magnetic Reconnection in the Collisional Ionosphere of Mars With MAVEN

open access: yesGeophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Magnetic reconnection in collisional plasmas has been widely studied in solar and laboratory plasma disciplines, but in situ measurements in space plasmas have rarely been utilized to explore this reconnection regime. Here we study collisional effects on magnetic reconnection in the Martian ionosphere by analyzing in situ data obtained by the ...
Y. Harada   +7 more
wiley   +1 more source

A Statistical Study of Soft X-ray Flares on Solar-type Stars [PDF]

open access: green, 2023
Z. H. Zhao   +4 more
openalex   +1 more source

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