Evolution of flare ribbons, electric currents, and quasi-separatrix layers during an X-class flare

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Authors

Miho Janvier · Centre National de la Recherche Scientifique

Antonia Savcheva · Smithsonian Astrophysical Observatory

É. Pariat · Université Paris Cité

Svetlin Tassev · Smithsonian Astrophysical Observatory

Sarah Millholland · University of California, Santa Cruz

V. Bommier · Délégation Paris 7

Patrick McCauley

Abstract

Context. The standard model for eruptive flares has been extended to three dimensions (3D) in the past few years. This model predicts typical J-shaped photospheric footprints of the coronal current layer, forming at similar locations as the quasi-separatrix layers (QSLs). Such a morphology is also found for flare ribbons observed in the extreme ultraviolet (EUV) band, and in nonlinear force-free field (NLFFF) magnetic field extrapolations and models.

Topics & Keywords

Solar and Space Plasma Dynamics Ionosphere and magnetosphere dynamics Geomagnetism and Paleomagnetism Studies

Publication Details

Published in: Astronomy and Astrophysics

Volume 591, pp. A141-A141

DOI: 10.1051/0004-6361/201628406

Field-Weighted Citation Impact: 8.05

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Evolution of flare ribbons, electric currents, and quasi-separatrix layers during an X-class flare

Authors

Abstract

Topics & Keywords

Publication Details