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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

Probability Distribution Functions of Solar and Stellar Flares [PDF]

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   +2 more sources

A Database of Magnetic and Thermodynamic Properties of Confined and Eruptive Solar Flares [PDF]

open access: yesThe Astrophysical Journal, 2023
Solar flares sometimes lead to coronal mass ejections that directly affect Earth's environment. However, a large fraction of flares, including on solar-type stars, are confined flares.
Maria D. Kazachenko
doaj   +2 more sources

Sun-as-a-star Analysis of the X1.6 Flare on 2023 August 5: Dynamics of Postflare Loops in Spatially Integrated Observational Data [PDF]

open access: yesThe Astrophysical Journal Letters
Postflare loops are loop-like plasmas observed during the decay phase of solar flares, and they are expected to exist for stellar flares. However, it is unclear how postflare loops are observed in stellar flares’ cases.
Takato Otsu   +3 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

Corporate social responsibility: A review of empirical research using Thomson Reuters Asset4 data

open access: yesAccounting &Finance, Volume 62, Issue 4, Page 4523-4568, December 2022., 2022
Abstract Thomson Reuters Asset4 (Asset4) is a leading corporate social responsibility (CSR) database often used by practitioners and researchers. This review offers a precise understanding of prior studies using Asset4 and their justification for selecting Asset4, and identifies research opportunities.
Charl de Villiers   +2 more
wiley   +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

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