From formation to disruption: observing the multiphase evolution of a solar flare current sheet

L.P. Chitta; E.R. Priest; X. Cheng

doi:10.3847/1538-4357/abec4d

From formation to disruption: observing the multiphase evolution of a solar flare current sheet

L.P. Chitta, E.R. Priest, X. Cheng

Applied Mathematics

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Abstract

A current sheet, where magnetic energy is liberated through reconnection and converted to other forms, is thought to play the central role in solar flares, the most intense explosions in the heliosphere. However, the evolution of a current sheet and its subsequent role in flare-related phenomena such as particle acceleration is poorly understood. Here we report observations obtained with NASA's Solar Dynamics Observatory that reveal a multiphase evolution of a current sheet in the early stages of a solar flare, from its formation to quasi-stable evolution and disruption. Our observations have implications for the understanding of the onset and evolution of reconnection in the early stages of eruptive solar flares.

Original language	English
Article number	133
Number of pages	12
Journal	Astrophysical Journal
Volume	911
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/abec4d
Publication status	Published - 27 Apr 2021

Keywords

Solar flares
Solar magnetic reconnection
Solar corona

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10.3847/1538-4357/abec4d

Chitta_2021_AJ_From-formation_AAM
Copyright © 2021 American Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.3847/1538-4357/abec4d.
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https://arxiv.org/abs/2103.02352v1

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title = "From formation to disruption: observing the multiphase evolution of a solar flare current sheet",

abstract = "A current sheet, where magnetic energy is liberated through reconnection and converted to other forms, is thought to play the central role in solar flares, the most intense explosions in the heliosphere. However, the evolution of a current sheet and its subsequent role in flare-related phenomena such as particle acceleration is poorly understood. Here we report observations obtained with NASA's Solar Dynamics Observatory that reveal a multiphase evolution of a current sheet in the early stages of a solar flare, from its formation to quasi-stable evolution and disruption. Our observations have implications for the understanding of the onset and evolution of reconnection in the early stages of eruptive solar flares. ",

keywords = "Solar flares, Solar magnetic reconnection, Solar corona",

author = "L.P. Chitta and E.R. Priest and X. Cheng",

note = "X.C. is funded by NSFC grants 11722325, 11733003, 11790303, and 11790300 and the Alexander von Humboldt Foundation. ",

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AU - Chitta, L.P.

AU - Priest, E.R.

AU - Cheng, X.

N1 - X.C. is funded by NSFC grants 11722325, 11733003, 11790303, and 11790300 and the Alexander von Humboldt Foundation.

PY - 2021/4/27

Y1 - 2021/4/27

N2 - A current sheet, where magnetic energy is liberated through reconnection and converted to other forms, is thought to play the central role in solar flares, the most intense explosions in the heliosphere. However, the evolution of a current sheet and its subsequent role in flare-related phenomena such as particle acceleration is poorly understood. Here we report observations obtained with NASA's Solar Dynamics Observatory that reveal a multiphase evolution of a current sheet in the early stages of a solar flare, from its formation to quasi-stable evolution and disruption. Our observations have implications for the understanding of the onset and evolution of reconnection in the early stages of eruptive solar flares.

AB - A current sheet, where magnetic energy is liberated through reconnection and converted to other forms, is thought to play the central role in solar flares, the most intense explosions in the heliosphere. However, the evolution of a current sheet and its subsequent role in flare-related phenomena such as particle acceleration is poorly understood. Here we report observations obtained with NASA's Solar Dynamics Observatory that reveal a multiphase evolution of a current sheet in the early stages of a solar flare, from its formation to quasi-stable evolution and disruption. Our observations have implications for the understanding of the onset and evolution of reconnection in the early stages of eruptive solar flares.

KW - Solar flares

KW - Solar magnetic reconnection

KW - Solar corona

U2 - 10.3847/1538-4357/abec4d

DO - 10.3847/1538-4357/abec4d

M3 - Article

SN - 0004-637X

VL - 911

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 133

ER -

From formation to disruption: observing the multiphase evolution of a solar flare current sheet

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