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Characteristics of flight delays during solar flares [PDF]

open access: yesScientific Reports, 2023
Solar flares are one of the severest solar activities that have important effects on near-Earth space. Previous studies have shown that flight arrival delays increase as a result of solar flares, but the intrinsic mechanism behind this relationship is ...
X. H. Xu   +17 more
doaj   +2 more sources

Effect of solar flares on 54Mn and 57Co radioactive decay constants performance [PDF]

open access: yesNuclear Technology and Radiation Protection, 2021
Changes in radioactive decay rates due to solar flares have attracted increasing scientific attention in recent decades. In previous studies we demonstrated that solar flares cause changes in the decay rate of 241Am, 222Rn, and 232Th. The change
Walg Jonathan   +4 more
doaj   +1 more source

Omori’s Law in the Occurrence of Solar Flare : Approach of Hybrid Model [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2020
Solar flares are large-scale phenomena that have a significant effect on theEarth’s climate. Using the solar flare time series from January 1, 2006 to July 21, 2016,we develop a complex network for predicting solar flares.
Amin Najafi
doaj   +1 more source

The Variation of the X-ray Solar Flare’s Time Profile

open access: yesUniverse, 2022
We have studied the variation of the time profile of X-ray emission of solar flares that occurred during the second half of solar cycle 23 (SC 23) and for about the full solar cycle 24 (SC 24) (2002–2018). We define a new index, called the “ratio index” (
Ramy Mawad   +3 more
doaj   +1 more source

Evolutionary Relationship between Sunspot Groups and Soft X-Ray Flares over Solar Cycles 21–25

open access: yesThe Astrophysical Journal, 2023
Studying the interaction between solar flares and sunspot groups (SGs) is crucial for understanding and predicting solar activity. We examined the distribution, correlation, and flaring rates in the northern and southern hemispheres to reveal the ...
Jiaqi Lin   +5 more
doaj   +1 more source

Probability Distribution Functions of Solar and Stellar Flares

open access: yesPhysics, 2022
The paper studies the soft X-ray data of solar flares and found that the distribution functions of flare fluence are successfully modeled by tapered power law or gamma function distributions whose power exponent is slightly smaller than 2, indicating ...
Takashi Sakurai
doaj   +1 more source

LOW-POWER SOLAR FLARES OF OPTICAL AND X-RAY WAVELENGTHS FOR SOLAR CYCLES 21–24

open access: yesSolar-Terrestrial Physics, 2020
Using data obtained in optical and X-ray wavelengths, we have analyzed solar flare activity for cycles 21–24. Over the last three cycles, solar activity is shown to decrease significantly.
A.V. Borovik , A.A. Zhdanov
doaj   +1 more source

September 2017 Solar Flares Effect on the Middle Atmosphere

open access: yesRemote Sensing, 2022
This paper examines the response of the upper atmosphere to increased radiation following exceptional solar activity in September 2017. The active region of the Sun AR2673 has caused intense solar-terrestrial disturbance. This active region has generated
Polina Pikulina   +3 more
doaj   +1 more source

THE PROCESSES OF ENERGY RELEASE IN LOW-POWER SOLAR FLARES

open access: yesSolar-Terrestrial Physics, 2019
Using flare patrol data for 1972–2010 [http://www.ngdc.noaa.gov/stp/space-weather/solar-data/solar-features/solar-flares/], we have conducted statistical studies of small solar flares.
Borovik A.V., Zhdanov A.A.
doaj   +1 more source

Statistical studies of low-power solar flares. Distribution of flares by area, brightness, and classes

open access: yesSolar-Terrestrial Physics, 2017
An electronic database has been created for 123801 solar flares that occurred on the Sun over the period from 1972 to 2010. It is based on catalogs of the Solar Geophysical Data (SGD) and Quarterly Bulletin on Solar Activity.
Borovik A.V., Zhdanov A.A.
doaj   +1 more source

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