Prantika Bhowmik prantika.bhowmik@durham.ac.uk
Post Doctoral Research Associate
Prantika Bhowmik prantika.bhowmik@durham.ac.uk
Post Doctoral Research Associate
Professor Anthony Yeates anthony.yeates@durham.ac.uk
Professor
Dr Oliver Rice oliver.e.rice@durham.ac.uk
Post Doctoral Research Associate
Coronal mass ejections (CMEs) – among the most energetic events originating from the Sun – can cause significant and sudden disruption to the magnetic and particulate environment of the heliosphere. Thus, in the current era of space-based technologies, early warning that a CME has left the Sun is crucial. Some CMEs exhibit signatures at the solar surface and in the lower corona as the eruption occurs, thus enabling their prediction before arriving at near-Earth satellites. However, a significant fraction of CMEs exhibit no such detectable signatures and are known as “stealth CMEs”. Theoretical and observational studies aiming to understand the physical mechanism behind stealth CMEs have identified coronal streamers as potential sources. In this paper, we show that such streamer-blowout eruptions – which do not involve the lift-off of a low-coronal magnetic flux rope – are naturally produced even in the quasi-static magnetofrictional model for the coronal magnetic field. Firstly, we show that magnetofriction can reproduce, in this way, a particular stealth CME event observed during 1- 2 June 2008. Secondly, we show that the magnetofrictional model predicts the occurrence of repeated eruptions without clear low-coronal signatures from such arcades, provided that the high, overlying magnetic field lines are sufficiently sheared by differential rotation. A two-dimensional parameter study shows that such eruptions are robust under variation of the parameters, and that the eruption frequency is primarily determined by the footpoint shearing. This suggests that magnetofrictional models could, in principle, provide early indication – even pre-onset – of stealth eruptions, whether or not they originate from eruption of a low-coronal flux rope.
Bhowmik, P., Yeates, A., & Rice, O. (2022). Exploring the Origin of Stealth Coronal Mass Ejections with Magnetofrictional Simulations. Solar Physics, 297(3), Article 41. https://doi.org/10.1007/s11207-022-01974-x
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 7, 2022 |
Online Publication Date | Mar 29, 2022 |
Publication Date | 2022-03 |
Deposit Date | Mar 10, 2022 |
Publicly Available Date | May 11, 2022 |
Journal | Solar Physics |
Print ISSN | 0038-0938 |
Electronic ISSN | 1573-093X |
Publisher | Springer |
Peer Reviewed | Peer Reviewed |
Volume | 297 |
Issue | 3 |
Article Number | 41 |
DOI | https://doi.org/10.1007/s11207-022-01974-x |
Public URL | https://durham-repository.worktribe.com/output/1212946 |
Published Journal Article
(6.2 Mb)
PDF
Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Copyright Statement
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Spherical winding and helicity
(2023)
Journal Article
Automated driving for global non-potential simulations of the solar corona
(2022)
Journal Article
Intrinsic winding of braided vector fields in tubular subdomains
(2021)
Journal Article
On the limitations of magneto-frictional relaxation
(2022)
Journal Article
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
Apache License Version 2.0 (http://www.apache.org/licenses/)
Apache License Version 2.0 (http://www.apache.org/licenses/)
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2025
Advanced Search