Results 81 to 90 of about 3,305 (196)

Hinode Observations of the Onset Stage of a Solar Filament Eruption [PDF]

open access: yesPublications of the Astronomical Society of Japan, 2007
Abstract We used Hinode X-Ray Telescope (XRT) and Solar Optical Telescope (SOT) filtergraph (FG) Stokes-V magnetogram observations, to study the early onset of a solar eruption that includes an erupting filament that we observe in TRACE EUV images.
Alphonse C. Sterling   +14 more
openaire   +1 more source

Forecasting Coronal Mass Ejections Using Transformers: A Comparative Study of Flare‐Associated Versus Flare‐Independent Approaches

open access: yesSpace Weather, Volume 23, Issue 8, August 2025.
Abstract Forecasting coronal mass ejections (CMEs) remains a challenge, and no reliable, accurate forecasting method has yet been developed. Knowing that CMEs can occur in association with flares, we compare two approaches: (a) forecasting CMEs by coupling to flare forecasting, and (b) forecasting CMEs independently of flare occurrence.
Julio Hernandez Camero, Lucie M. Green
wiley   +1 more source

Observations of a New Form of Partial Filament Eruption

open access: yesThe Astrophysical Journal Letters
Coronal mass ejections (CMEs) and coronal jets are two of the best-studied forms of solar eruptions, with the same underlying physics. Previous studies have presented partial eruptions producing coronal jets.
Abril Sahade   +2 more
doaj   +1 more source

Multiwavelength observations of a partially eruptive filament on 2011 September 8

open access: yes, 2015
In this paper, we report our multiwavelength observations of a partial filament eruption event in NOAA active region 11283 on 2011 September 8. A magnetic null point and the corresponding spine and separatrix surface are found in the active region ...
Cheng, X.   +7 more
core   +1 more source

Can a Major Geomagnetic and Auroral Disturbance Originate From a Solar Active Region Close to the Limb?

open access: yesSpace Weather, Volume 23, Issue 8, August 2025.
Abstract When forecasting major geomagnetic storms, it is commonly assumed that coronal eruptions near the solar limb are not of concern. We here discuss two sequences of events: the Fátima storms of January 1938 and the Halloween storms of October/November 2003.
Mike Lockwood   +4 more
wiley   +1 more source

Photospheric Horizontal Magnetic Field Decrease Preceding a Major Solar Eruption

open access: yesThe Astrophysical Journal
Significant photospheric magnetic field changes during major solar eruptions—interpreted as coronal feedback from eruptions to the photosphere—are well-observed. However, analogous short-timescale field changes preceding eruptions are rarely reported. In
Lijuan Liu, Hanzhao Yang
doaj   +1 more source

Magnetic Flux of EUV Arcade and Dimming Regions as a Relevant Parameter for Early Diagnostics of Solar Eruptions - Sources of Non-Recurrent Geomagnetic Storms and Forbush Decreases

open access: yes, 2012
This study aims at the early diagnostics of geoeffectiveness of coronal mass ejections (CMEs) from quantitative parameters of the accompanying EUV dimming and arcade events.
A. A. Abunin   +76 more
core   +1 more source

Multiwavelength Study on Solar and Interplanetary Origins of the Strongest Geomagnetic Storm of Solar Cycle 23

open access: yes, 2011
We study the solar sources of an intense geomagnetic storm of solar cycle 23 that occurred on 20 November 2003, based on ground- and space-based multiwavelength observations.
B. Schmieder   +34 more
core   +1 more source

Sleuthing Stellar Filament Eruptions Using He 1083 nm: A Solar Test

open access: yes, 2023
Much effort has gone into detecting stellar CMEs due to their importance for stellar mass and angular momentum loss, and planetary habitability. But what of their stealthier (flare-free) cousins, the filament eruptions (FE)? We explore using the microvariability in filter observations of the He I 1083 nm line to observe FE in stars.
Saar, Steven H., Cressman, Anna R.
openaire   +1 more source

Comprehensive Study of Li Deposition and Solid Electrolyte Cracking by Integrating Simulation and Experimental Data

open access: yesAdvanced Science, Volume 12, Issue 25, July 3, 2025.
This study presents a phase‐field model integrating mechanical constraints, solid–solid contact, and large‐strain mechanochemical coupling to characterize lithium deposition and electrolyte cracking. Results show that reducing mechanical constraints, with good electrode–electrolyte contact, suppresses dendrite eruption in cracks and extends battery ...
Chen Lin, Haihui Ruan, Ming‐Sheng Wang
wiley   +1 more source

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