24–26 May 2021
Virtual
US/Eastern timezone

Three-dimensional reconnection in solar flares

24 May 2021, 13:05
40m
Virtual

Virtual

Poster Fast Release Mechanisms Poster session: SQ1 and SQ2

Speaker

Jaroslav Dudík (Astronomical Institute of the Czech Academy of Sciences)

Description

We report on identification of new three-dimensional reconnection geometries in eruptive solar flares. These involve reconnection of the erupting flux rope either with the surrounding corona (ar-rf reconnection) or with itself (rr-rf), leading to creation of new flux rope field lines and flare loops. In addition, the CME legs are found to drift across the solar surface. The new reconnection geometries were observationally verified in multiple flares, including the discovery of the general saddle-shape of solar flare arcades, and observations of direct conversion of filament strands to flare loops.

Primary author

Jaroslav Dudík (Astronomical Institute of the Czech Academy of Sciences)

Co-authors

Mr Juraj Lorincik (Astronomical Institute of the Czech Academy of Sciences) Dr Guillaume Aulanier (Observatoire de Paris)

Presentation materials