Gaussian separation reveals that optimization and CFIT NLFFF models reproduce some coronal current signatures from magnetogram data for AR 11429 but the CFIT model alters a flux rope signature along the lower PIL.
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4 Pith papers cite this work. Polarity classification is still indexing.
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3D MHD modeling reveals Y-points do not coincide with cusp tips in candle-flame flares and apparent downflow speeds underestimate Alfvén speeds by 2-10x due to projection effects.
Persistent same-polarity flux emergences drove collisional shearing and cancellations at a PIL, accumulating free energy and forming MFRs that produced multiple large flares including X9.0, with a pre-flare drop in photospheric free-energy area as a possible precursor.
Sympathetic filament and active-region eruptions produced two overlapping CMEs whose interaction compressed southward magnetic fields, driving a major geomagnetic storm with Dst ~ -333 nT.
citing papers explorer
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Validating Coronal Magnetic Field Models Using Gaussian Separation
Gaussian separation reveals that optimization and CFIT NLFFF models reproduce some coronal current signatures from magnetogram data for AR 11429 but the CFIT model alters a flux rope signature along the lower PIL.
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On the Nature of Candle-Flame-Shaped Solar Flares and Sub-Alfv\'enic Supra-Arcade Plasma Downflows
3D MHD modeling reveals Y-points do not coincide with cusp tips in candle-flame flares and apparent downflow speeds underestimate Alfvén speeds by 2-10x due to projection effects.
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Magnetic Evolution of Highly-Sheared Region in Active Region 13842 Producing Large X9.0 Flare
Persistent same-polarity flux emergences drove collisional shearing and cancellations at a PIL, accumulating free energy and forming MFRs that produced multiple large flares including X9.0, with a pre-flare drop in photospheric free-energy area as a possible precursor.
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A Major Geomagnetic Storm in 2024 October Linked to Sympathetic CME--Prominence Eruptions
Sympathetic filament and active-region eruptions produced two overlapping CMEs whose interaction compressed southward magnetic fields, driving a major geomagnetic storm with Dst ~ -333 nT.