Results 51 to 60 of about 2,282,682 (263)

Latitudinal distribution of solar microflares and high-temperature plasma at solar minimum

open access: yesSolar-Terrestrial Physics, 2023
The paper analyzes the latitudinal distribution of high-temperature plasma (T>4 MK) and microflares on the solar disk during low solar activity in 2009.
Kirichenko A. S.   +4 more
doaj   +1 more source

Predicting Solar Flares Using a Convolutional Neural Network with Extreme-ultraviolet Images

open access: yesAstrophysical Journal
Solar flares, as one of the most intense solar eruptive activities, can bring a destructive impact on the near-Earth space environment and technological infrastructure.
Yun Yang   +3 more
semanticscholar   +1 more source

Predicting Solar Flares Using SDO/HMI Vector Magnetic Data Products and the Random Forest Algorithm [PDF]

open access: yes, 2017
Adverse space-weather effects can often be traced to solar flares, the prediction of which has drawn significant research interests. The Helioseismic and Magnetic Imager (HMI) produces full-disk vector magnetograms with continuous high cadence, while ...
Chang Liu   +3 more
semanticscholar   +1 more source

Using Machine Learning Methods to Forecast if Solar Flares Will Be Associated with CMEs and SEPs [PDF]

open access: yesAstrophysical Journal, 2018
Among the eruptive activity phenomena observed on the Sun, those that threaten human technology the most are flares with associated coronal mass ejections (CMEs) and solar energetic particles (SEPs).
F. Inceoglu   +5 more
semanticscholar   +1 more source

The Influence of Solar Spectral Lines on Electron Concentration in Terrestrial Ionosphere

open access: yesOpen Astronomy, 2011
One of the methods of detection and analysis of solar flares is observing the time variations of certain solar spectral lines. During solar flares, a raise of electron concentration occurs in Earth’s ionosphere which results in amplitude and phase ...
Nina A.   +3 more
doaj   +1 more source

Investigation of the Sudden Solar Ionospheric Disturbance using Radio Telescope [PDF]

open access: yesEPJ Web of Conferences, 2020
Low-frequency radio telescopes are cheap and useful devices for the investigation of terrestrial and extra-terrestrial emissions. These emissions come either from the Sun and the planet Jupiter to terrestrial emissions.
Aqasha Adam   +3 more
doaj   +1 more source

Global Energetics of Solar Flares. V. Energy Closure in Flares and Coronal Mass Ejections [PDF]

open access: yes, 2017
In this study we synthesize the results of four previous studies on the global energetics of solar flares and associated coronal mass ejections (CMEs), which include magnetic, thermal, nonthermal, and CME energies in 399 solar M- and X-class flare events
M. Aschwanden   +13 more
semanticscholar   +1 more source

Solar flare particle acceleration in collapsing magnetic traps [PDF]

open access: yes, 2012
Electronic redacted version excludes material for which permission has not been granted by the rights holderThe topic of this thesis is a detailed investigation of different aspects of the particle acceleration mechanisms operating in Collapsing Magnetic
Grady, Keith J.
core   +1 more source

The influence of active region information on the prediction of solar flares: an empirical model using data mining [PDF]

open access: yesAnnales Geophysicae, 2005
Predicting the occurrence of solar flares is a challenge of great importance for many space weather scientists and users. We introduce a data mining approach, called Behavior Pattern Learning (BPL), for automatically discovering correlations between ...
M. Núñez   +3 more
doaj   +1 more source

Traveling Ionospheric Disturbances and Ionospheric Perturbations Associated With Solar Flares in September 2017

open access: yesJournal of Geophysical Research - Space Physics, 2019
Solar flares provide strong impulsive radiation and energy injection to the sunlit upper atmosphere. The impact on the ionosphere is immense in spatial scale, and therefore, it is not immediately evident if dramatically elevated neutral heating can lead ...
Shun-Rong Zhang   +5 more
semanticscholar   +1 more source

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