Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection

A Moreton wave was detected in active region (AR) 12017 on 29 March 2014 with very high cadence with the H-Alpha Solar Telescope for Argentina (HASTA) in association with an X1.0 flare (SOL2014-03-29T17:48). Several other phenomena took place in connection with this event, such as low-coronal waves...

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Autores principales: Francile, C., López, F.M., Cremades, H., Mandrini, C.H., Luoni, M.L., Long, D.M.
Formato: JOUR
Materias:
Coronal mass ejections, low coronal signatures
Flares, waves
Waves, propagation
Waves, shocks
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00380938_v291_n11_p3217_Francile
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00380938_v291_n11_p3217_Francile
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spelling todo:paper_00380938_v291_n11_p3217_Francile2023-10-03T14:48:53Z Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection Francile, C. López, F.M. Cremades, H. Mandrini, C.H. Luoni, M.L. Long, D.M. Coronal mass ejections, low coronal signatures Flares, waves Waves, propagation Waves, shocks A Moreton wave was detected in active region (AR) 12017 on 29 March 2014 with very high cadence with the H-Alpha Solar Telescope for Argentina (HASTA) in association with an X1.0 flare (SOL2014-03-29T17:48). Several other phenomena took place in connection with this event, such as low-coronal waves and a coronal mass ejection (CME). We analyze the association between the Moreton wave and the EUV signatures observed with the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory. These include their low-coronal surface-imprint, and the signatures of the full wave and shock dome propagating outward in the corona. We also study their relation to the white-light CME. We perform a kinematic analysis by tracking the wavefronts in several directions. This analysis reveals a high-directional dependence of accelerations and speeds determined from data at various wavelengths. We speculate that a region of open magnetic field lines northward of our defined radiant point sets favorable conditions for the propagation of a coronal magnetohydrodynamic shock in this direction. The hypothesis that the Moreton wavefront is produced by a coronal shock-wave that pushes the chromosphere downward is supported by the high compression ratio in that region. Furthermore, we propose a 3D geometrical model to explain the observed wavefronts as the chromospheric and low-coronal traces of an expanding and outward-traveling bubble intersecting the Sun. The results of the model are in agreement with the coronal shock-wave being generated by a 3D piston that expands at the speed of the associated rising filament. The piston is attributed to the fast ejection of the filament–CME ensemble, which is also consistent with the good match between the speed profiles of the low-coronal and white-light shock waves. © 2016, Springer Science+Business Media Dordrecht. Fil:Luoni, M.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00380938_v291_n11_p3217_Francile
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Coronal mass ejections, low coronal signatures
Flares, waves
Waves, propagation
Waves, shocks
spellingShingle Coronal mass ejections, low coronal signatures
Flares, waves
Waves, propagation
Waves, shocks
Francile, C.
López, F.M.
Cremades, H.
Mandrini, C.H.
Luoni, M.L.
Long, D.M.
Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection
topic_facet Coronal mass ejections, low coronal signatures
Flares, waves
Waves, propagation
Waves, shocks
description A Moreton wave was detected in active region (AR) 12017 on 29 March 2014 with very high cadence with the H-Alpha Solar Telescope for Argentina (HASTA) in association with an X1.0 flare (SOL2014-03-29T17:48). Several other phenomena took place in connection with this event, such as low-coronal waves and a coronal mass ejection (CME). We analyze the association between the Moreton wave and the EUV signatures observed with the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory. These include their low-coronal surface-imprint, and the signatures of the full wave and shock dome propagating outward in the corona. We also study their relation to the white-light CME. We perform a kinematic analysis by tracking the wavefronts in several directions. This analysis reveals a high-directional dependence of accelerations and speeds determined from data at various wavelengths. We speculate that a region of open magnetic field lines northward of our defined radiant point sets favorable conditions for the propagation of a coronal magnetohydrodynamic shock in this direction. The hypothesis that the Moreton wavefront is produced by a coronal shock-wave that pushes the chromosphere downward is supported by the high compression ratio in that region. Furthermore, we propose a 3D geometrical model to explain the observed wavefronts as the chromospheric and low-coronal traces of an expanding and outward-traveling bubble intersecting the Sun. The results of the model are in agreement with the coronal shock-wave being generated by a 3D piston that expands at the speed of the associated rising filament. The piston is attributed to the fast ejection of the filament–CME ensemble, which is also consistent with the good match between the speed profiles of the low-coronal and white-light shock waves. © 2016, Springer Science+Business Media Dordrecht.
format JOUR
author Francile, C.
López, F.M.
Cremades, H.
Mandrini, C.H.
Luoni, M.L.
Long, D.M.
author_facet Francile, C.
López, F.M.
Cremades, H.
Mandrini, C.H.
Luoni, M.L.
Long, D.M.
author_sort Francile, C.
title Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection
title_short Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection
title_full Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection
title_fullStr Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection
title_full_unstemmed Moreton and EUV Waves Associated with an X1.0 Flare and CME Ejection
title_sort moreton and euv waves associated with an x1.0 flare and cme ejection
url http://hdl.handle.net/20.500.12110/paper_00380938_v291_n11_p3217_Francile
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