Interactions between Filament Fibrils and a Network Field
The Astrophysical Journal, 2023 Filaments are common structures in the solar atmosphere, and usually interact with their surrounding magnetic fields. However, interactions between filaments and network fields are rare.
Zhiping Song, Jun Zhang, Yue Fang
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Small-scale motions in solar filaments as the precursors of eruptions [PDF]
Nippon Tenmon Gakkai obun kenkyu hokoku, 2019 Filaments, the dense cooler plasma floating in the solar corona supported by magnetic fields, generally exhibit certain activations before they erupt. In our previous study (Seki et al. 2017 ), we observed that the standard deviation of the line-of-sight
D. Seki +5 more
semanticscholar +1 more source
Dynamics of Threads Wrapping a Filament's Leg Prior to the Eruption on 2021 October 28
The Astrophysical Journal, 2023 Although the magnetic field structures of solar filaments have been studied for several decades, the detailed evolution of the structure around a filament prior to its eruption is rarely observed. On 2021 October 28 in AR 12887, a major solar flare (X1.0
Yue Fang, Jun Zhang, Yi Bi, Zhiping Song
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Statistical Study of the Magnetic Field Orientation in Solar Filaments [PDF]
, 2017 We have carried out a statistical study of the average orientation of the magnetic field in solar filaments with respect to their axes for more than 400 samples, based on data taken with daily full-Sun, full-Stokes spectropolarimetric observations using ...
Y. Hanaoka, T. Sakurai
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Large-amplitude Longitudinal Oscillations Triggered by the Merging of Two Solar Filaments: Observations and Magnetic Field Analysis [PDF]
, 2017 We follow the eruption of two related intermediate filaments observed in Hα (from GONG) and EUV (from Solar Dynamics Observatory SDO/Atmospheric Imaging assembly AIA) and the resulting large-amplitude longitudinal oscillations of the plasma in the ...
Manuel Luna +7 more
semanticscholar +1 more source
The Relationship between Chirality, Sense of Rotation, and Hemispheric Preference of Solar Eruptive Filaments [PDF]
Astrophysical Journal, 2020 The orientation, chirality, and dynamics of solar eruptive filaments are key to our understanding of the magnetic field of coronal mass ejections (CMEs), and therefore to predicting the geoeffectiveness of CMEs arriving at Earth.
Z. Zhou 周 +6 more
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Long-term Study of the Solar Filaments from the Synoptic Maps as Derived from Spectroheliograms of the Kodaikanal Observatory [PDF]
, 2017 The century long (1914–2007) (656.28 nm) spectroheliograms from the Kodaikanal Solar Observatory (KSO) have been recently digitized. Using these newly calibrated, processed images we study the evolution of dark elongated on-disk structures called ...
Subhamoy Chatterjee +4 more
semanticscholar +1 more source
Striation and convection in penumbral filaments [PDF]
, 2010 Observations with the 1-m Swedish Solar Telescope of the flows seen in penumbral filaments are presented. Time sequences of bright filaments show overturning motions strikingly similar to those seen along the walls of small isolated structures in the ...
Adam +49 more
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Filaments and the Solar Dynamo [PDF]
International Astronomical Union Colloquium, 1998 AbstractFilaments are a global phenomenon and their formation, structure and dynamics are determined by magnetic fields. So they are an important signature of the solar magnetism. The central mechanism in traditional mean-field dynamo theory is the alpha effect and it is a major result of this theory that the presence of kinetic or magnetic helicities ...
openaire +2 more sources
Two Types of Long-duration Quasi-static Evolution of Solar Filaments [PDF]
, 2018 In this Letter, we investigate the long-duration quasi-static evolution of 12 pre-eruptive filaments (four active region (AR) and eight quiescent filaments), mainly focusing on the evolution of the filament height in 3D and the decay index of the ...
C. Xing +4 more
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