Results 11 to 20 of about 1,350,678 (342)
SOLAR MAGNETIZED “TORNADOES:” RELATION TO FILAMENTS [PDF]
The Astrophysical Journal, 2012 Solar magnetized "tornadoes", a phenomenon discovered in the solar atmosphere, appear as tornado-like structures in the corona but root in the photosphere. Like other solar phenomena, solar tornadoes are a feature of magnetized plasma and therefore differ distinctly from terrestrial tornadoes. Here we report the first analysis of solar "tornadoes" {Two
Yang Su +4 more
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Why Do Torus-unstable Solar Filaments Experience Failed Eruptions? [PDF]
Astrophysical Journal, 2019 We study the magnetic field and 3D configuration of 16 filament eruptions during 2010 July–2013 February in order to investigate the factors that control the success and/or failure of solar eruptions.
Z. Zhou 周 +7 more
semanticscholar +5 more sources
Quantification of the Writhe Number of the Evolution of Solar Filament Axes [PDF]
The Astrophysical Journal, 2023 Solar filament eruptions often show complex and dramatic geometric deformation that is highly relevant to the underlying physical mechanism triggering the eruptions.
Zhenjun Zhou +5 more
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Midterm periods of solar filaments [PDF]
Journal of Geophysical Research: Space Physics, 2014 AbstractOn the basis of the Carte Synoptique catalogue of solar filaments from March 1919 to December 1989, we measure power spectra of detrended full‐disk (FSFNs, latitudinal bands: 0∘–90∘), low‐latitude (LSFNs, latitudinal bands: <50∘), and high‐latitude (HSFNs, latitudinal bands: ≥50∘) solar filament numbers by Maximum Entropy Method (MEM) and ...
Peng Zou, Qixiu Li
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CHIRALITY AND MAGNETIC CONFIGURATIONS OF SOLAR FILAMENTS [PDF]
The Astrophysical Journal, 2017 ABSTRACT It has been revealed that the magnetic topology in the solar atmosphere displays hemispheric preference, i.e., helicity is mainly negative/positive in the northern/southern hemispheres, respectively. However, the strength of the hemispheric rule and its cyclic variation are controversial.
Y. Ouyang (欧阳雨) +3 more
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Collective Study of Polar Crown Filaments in the Past Four Solar Cycles [PDF]
Astrophysical Journal, 2018 Polar crown filaments (PCFs) form above the magnetic polarity inversion line, which separates the unipolar polar fields and the nearest dispersed fields from the trailing part of active regions with opposite polarity.
Yan Xu +5 more
semanticscholar +3 more sources
Latitude migration of solar filaments [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 The Carte Synoptique catalogue of solar filaments from March 1919 to December 1989, corresponding to complete cycles 16 to 21 is utilized to show latitudinal migration of filaments at low latitudes (less than 50 deg), and the latitudinal drift of solar filaments in each hemisphere in each cycle of the time interval is compared with the corresponding ...
K. Li
semanticscholar +5 more sources
Falling Threads during Solar Filament Eruptions
The Astrophysical JournalMass drainage is frequently observed in solar filaments. During filament eruptions, falling material most likely flows along magnetic field lines, which may provide important clues for the magnetic structures of filaments.
Yidian Wu +3 more
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Predicting Solar Filament Eruptions With Hek Filament Metadata
, 2015 Solar filaments are cool, dark channels of partially-ionized plasma that lie above the chromosphere. Their structure follows the neutral line between local regions of opposite magnetic polarity. Previous research (e.g. Schmieder et al. 2013) has shown a positive correlation (80%) between the occurrence of filament eruptions and coronal mass ejections ...
Ashna Aggarwal
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Comprehensive Analysis of a Filament-embedding Solar Active Region at Different Stages of Evolution [PDF]
The Astrophysical Journal LettersActive regions are the brightest structures seen in the solar corona, so their physical properties hold important clues to the physical mechanisms underlying coronal heating.
Jie Zhao +11 more
doaj +2 more sources