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Mars Upper Atmospheric Responses to the 10 September 2017 Solar Flare: A Global, Time‐Dependent Simulation [PDF]

open access: yesGeophysical Research Letters, 2019
We report the first global, time‐dependent simulation of the Mars upper atmospheric responses to a realistic solar flare event, an X8.2 eruption on 10 September 2017.
Xiaohua Fang   +14 more
doaj   +2 more sources

Observation of a reversal of rotation in a sunspot during a solar flare [PDF]

open access: yesNature Communications, 2016
Back reaction of coronal magnetic fields on the solar surface may help to understand the coronal reconfiguration during a solar flare. Here the authors report observation of reversal of the rotation of a sunspot during a X1.6 flare with data from HMI.
Yi Bi   +6 more
doaj   +2 more sources

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

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

Statistical analysis for EUV dynamic spectra and their impact on the ionosphere during solar flares

open access: yesEarth, Planets and Space, 2023
The X-rays and extreme ultraviolet (EUV) emitted during solar flares can rapidly change the physical composition of Earth’s ionosphere, causing space weather phenomena.
Shohei Nishimoto   +9 more
doaj   +1 more source

Comparison of VLF Signal Responses to Solar Flares along Daytime and Nighttime Propagation Paths

open access: yesRemote Sensing, 2023
Solar flares have a severe impact on the near-earth space environment, during which the VLF signals observed by the ground-based instrument exhibit abnormal changes.
Xudong Gu   +9 more
doaj   +1 more source

INCREASES IN SCR ENERGETIC PROTON FLUXES ON EARTH AND THEIR RELATION TO SOLAR SOURCES

open access: yesSolar-Terrestrial Physics, 2020
Logachev catalog data for solar cycle 23 has been used to study the dependence of measured increases in solar cosmic rays (SCRs) on solar perturbations. The efficiency of recording the SCR increases, driven by proton acceleration in the corona, on Earth ...
L.L. Lazutin
doaj   +1 more source

Detection of Solar Neutrons and Solar Neutron Decay Protons

open access: yesUniverse, 2023
Solar flares are broadly classified as impulsive or gradual. Ions accelerated in a gradual flare are thought to be accelerated through a shock acceleration mechanism, but the particle acceleration process in an impulsive flare is still largely unexplored.
Yasushi Muraki   +14 more
doaj   +1 more source

Solar Flares [PDF]

open access: yesInternational Astronomical Union Colloquium, 1995
AbstractThere are many types of solar flare, but the classic type is a two-ribbon flare with three phases — a preflare phase, a rise phase and a main phase. The properties of these phases are described, together with some recent observational advances in understanding the conditions for solar flares.
openaire   +1 more source

Full-Disk Solar Flare Forecasting Model Based on Data Mining Method

open access: yesAdvances in Astronomy, 2019
Solar flare is one of the violent solar eruptive phenomena; many solar flare forecasting models are built based on the properties of active regions. However, most of these models only focus on active regions within 30° of solar disk center because of the
Rong Li, Yong Du
doaj   +1 more source

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