A New Technique for the Photospheric Driving of Non-Potential Solar Coronal Magnetic Field Simulations

Weinzierl, Marion; Yeates, Anthony R.; Mackay, Duncan H.; Henney, Carl J.; Arge, C. Nick

doi:10.3847/0004-637x/823/1/55

A New Technique for the Photospheric Driving of Non-Potential Solar Coronal Magnetic Field Simulations

Weinzierl, Marion; Yeates, Anthony R.; Mackay, Duncan H.; Henney, Carl J.; Arge, C. Nick

Authors

Marion Weinzierl

Professor Anthony Yeates anthony.yeates@durham.ac.uk
Professor

Duncan H. Mackay

Carl J. Henney

C. Nick Arge

Contributors

Marion Weinzierl marion.weinzierl@durham.ac.uk
Other

M Weinzierl marion.weinzierl@durham.ac.uk
Other

Abstract

In this paper, we develop a new technique for driving global non-potential simulations of the Sun's coronal magnetic field solely from sequences of radial magnetic maps of the solar photosphere. A primary challenge to driving such global simulations is that the required horizontal electric field cannot be uniquely determined from such maps. We show that an "inductive" electric field solution similar to that used by previous authors successfully reproduces specific features of the coronal field evolution in both single and multiple bipole simulations. For these cases, the true solution is known because the electric field was generated from a surface flux-transport model. The match for these cases is further improved by including the non-inductive electric field contribution from surface differential rotation. Then, using this reconstruction method for the electric field, we show that a coronal non-potential simulation can be successfully driven from a sequence of ADAPT maps of the photospheric radial field, without including additional physical observations which are not routinely available.

Citation

Weinzierl, M., Yeates, A. R., Mackay, D. H., Henney, C. J., & Arge, C. N. (2016). A New Technique for the Photospheric Driving of Non-Potential Solar Coronal Magnetic Field Simulations. Astrophysical Journal, 823(1), Article 55. https://doi.org/10.3847/0004-637x/823/1/55

Journal Article Type	Article
Acceptance Date	Mar 20, 2016
Online Publication Date	May 23, 2016
Publication Date	May 1, 2016
Deposit Date	Apr 8, 2016
Publicly Available Date	Apr 8, 2016
Journal	Astrophysical Journal
Print ISSN	0004-637X
Electronic ISSN	1538-4357
Publisher	American Astronomical Society
Peer Reviewed	Peer Reviewed
Volume	823
Issue	1
Article Number	55
DOI	https://doi.org/10.3847/0004-637x/823/1/55