Exploring the coronal evolution of AR 12473 using time-dependent, data-driven magnetofrictional modelling

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http://hdl.handle.net/10138/324211

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Price , D , Pomoell , J & Kilpua , E 2020 , ' Exploring the coronal evolution of AR 12473 using time-dependent, data-driven magnetofrictional modelling ' , Astronomy & Astrophysics , vol. 644 , 28 . https://doi.org/10.1051/0004-6361/202038925

Title: Exploring the coronal evolution of AR 12473 using time-dependent, data-driven magnetofrictional modelling
Author: Price, Daniel; Pomoell, Jens; Kilpua, Emilia
Contributor: University of Helsinki, Space Physics Research Group
University of Helsinki, Department of Physics
University of Helsinki, Space Physics Research Group
Date: 2020-11-25
Language: eng
Number of pages: 7
Belongs to series: Astronomy & Astrophysics
ISSN: 1432-0746
URI: http://hdl.handle.net/10138/324211
Abstract: Aims. We present a detailed examination of the magnetic evolution of AR 12473 using time-dependent, data-driven magnetofrictional modelling.Methods. We used maps of the photospheric electric field inverted from vector magnetogram observations, obtained by the Helioseismic and Magnetic Imager onboard the Solar Dynamics Observatory (SDO), to drive our fully time-dependent, data-driven magnetofrictional model. Our modelled field was directly compared to extreme ultraviolet observations from the Atmospheric Imaging Assembly, also onboard SDO. Metrics were also computed to provide a quantitative analysis of the evolution of the magnetic field.Results. The flux rope associated with the eruption on 28 December 2015 from AR 12473 was reproduced by the simulation and found to have erupted due to a torus instability.
Subject: FIELDS
MASS EJECTIONS
Sun: corona
Sun: coronal mass ejections (CMEs)
VECTOR MAGNETOGRAM
magnetic fields
magnetic reconnection
methods: data analysis
methods: numerical
115 Astronomy, Space science
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