English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Atypical flares cannot be naturally explained with standard models. Topredict such flares, we need to define their physical characteristics, inparticular, their magnetic environment, and identify pairs of reconnectedloops. Here, we present in detail a case-study of a confined flare preceded byflux cancellation that leads to the formation of a filament. The slow rise ofthe non-eruptive filament favours the growth and reconnection of overlyingloops. The flare is only of C5.0 class but it is a long duration event. Thereason is that it is comprised of three successive stages of reconnection. Anon-linear force-free field extrapolation and a magnetic topology analysisallow us to identify the loops involved in the reconnection process and build areliable scenario for this atypical confined flare. The main result is that acurved magnetic polarity inversion line in active regions is a key ingredientfor producing such atypical flares. A comparison with previous extrapolationsfor typical and atypical confined flares leads us to propose a cartoon forgeneralizing the concept

Generalisation of the Magnetic Field Configuration of typical and atypical Confined Flares