Tag Archives: flares
147. Recurring Homologous Solar Eruptions in NOAA AR 11429
145. Magnetic Helicity Budget of Solar Active Regions Prolific of Eruptive and Confined Flares
144. Finding the critical decay index in solar prominence eruptions
140. Solar Flare Predictive Features Derived from Polarity Inversion Line Masks in Active Regions Using an Unsupervised Machine Learning Algorithm
138. Electric Current Neutralization in Solar Active Regions and Its Relation to Eruptive Activity
136. The Trigger Mechanism of Recurrent Solar Active Region Jets Revealed by the Magnetic Properties of a Coronal Geyser Site
135. Serial Flaring in an Active Region: Exploring Why Only One Flare is Eruptive
123. Very Fast Helicity Injection Leading to Critically Stable State and Large Eruptive Activity of AR 12673
121. The Origin of Major Solar Activity: Collisional Shearing between Nonconjugated Polarities of Multiple Bipoles Emerging within Active Regions
Magnetic flux of opposite polarities belonging to two different emerging/emerged bipoles inside multipolar magnetic regions, can experience “collisional shearing”, a process resulting in strong shearing and fast cancellation of magnetic flux near the polarity inversion line. This type of flux cancellation is found to be the cause of a succession of major flares and CMEs in complex active regions.