The Triggering of the 2014 March 29 Filament Eruption

Magnus M. Woods; Satoshi Inoue; Louise K. Harra; Sarah A. Matthews; Kanya Kusano; Nadine M.E. Kalmoni

doi:10.3847/1538-4357/aac5e1

The Triggering of the 2014 March 29 Filament Eruption

Magnus M. Woods, Satoshi Inoue, Louise K. Harra, Sarah A. Matthews, Kanya Kusano, Nadine M.E. Kalmoni

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17 Scopus citations

Abstract

The X1 flare and associated filament eruption occurring in NOAA Active Region 12017 on SOL2014-03-29 has been a source of intense study. In this work, we analyze the results of a series of nonlinear force-free field extrapolations of the flare's pre- and post-flare periods. In combination with observational data provided by the IRIS, Hinode, and Solar Dynamics Observatory missions, we have confirmed the existence of two flux ropes present within the active region prior to flaring. Of these two flux ropes, we find that intriguingly only one erupts during the X1 flare. We propose that the reason for this is due to tether cutting reconnection allowing one of the flux ropes to rise to a torus unstable region prior to flaring, thus allowing it to erupt during the subsequent flare.

Original language	English (US)
Article number	163
Journal	Astrophysical Journal
Volume	860
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aac5e1
State	Published - Jun 20 2018
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Sun: activity
Sun: filaments, prominences
Sun: flares
Sun: magnetic fields

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10.3847/1538-4357/aac5e1

Cite this

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title = "The Triggering of the 2014 March 29 Filament Eruption",

abstract = "The X1 flare and associated filament eruption occurring in NOAA Active Region 12017 on SOL2014-03-29 has been a source of intense study. In this work, we analyze the results of a series of nonlinear force-free field extrapolations of the flare's pre- and post-flare periods. In combination with observational data provided by the IRIS, Hinode, and Solar Dynamics Observatory missions, we have confirmed the existence of two flux ropes present within the active region prior to flaring. Of these two flux ropes, we find that intriguingly only one erupts during the X1 flare. We propose that the reason for this is due to tether cutting reconnection allowing one of the flux ropes to rise to a torus unstable region prior to flaring, thus allowing it to erupt during the subsequent flare.",

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AU - Woods, Magnus M.

AU - Inoue, Satoshi

AU - Harra, Louise K.

AU - Matthews, Sarah A.

AU - Kusano, Kanya

AU - Kalmoni, Nadine M.E.

PY - 2018/6/20

Y1 - 2018/6/20

N2 - The X1 flare and associated filament eruption occurring in NOAA Active Region 12017 on SOL2014-03-29 has been a source of intense study. In this work, we analyze the results of a series of nonlinear force-free field extrapolations of the flare's pre- and post-flare periods. In combination with observational data provided by the IRIS, Hinode, and Solar Dynamics Observatory missions, we have confirmed the existence of two flux ropes present within the active region prior to flaring. Of these two flux ropes, we find that intriguingly only one erupts during the X1 flare. We propose that the reason for this is due to tether cutting reconnection allowing one of the flux ropes to rise to a torus unstable region prior to flaring, thus allowing it to erupt during the subsequent flare.

AB - The X1 flare and associated filament eruption occurring in NOAA Active Region 12017 on SOL2014-03-29 has been a source of intense study. In this work, we analyze the results of a series of nonlinear force-free field extrapolations of the flare's pre- and post-flare periods. In combination with observational data provided by the IRIS, Hinode, and Solar Dynamics Observatory missions, we have confirmed the existence of two flux ropes present within the active region prior to flaring. Of these two flux ropes, we find that intriguingly only one erupts during the X1 flare. We propose that the reason for this is due to tether cutting reconnection allowing one of the flux ropes to rise to a torus unstable region prior to flaring, thus allowing it to erupt during the subsequent flare.

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KW - Sun: filaments, prominences

KW - Sun: flares

KW - Sun: magnetic fields

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The Triggering of the 2014 March 29 Filament Eruption

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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