Erdélyi, R. orcid.org/0000-0003-3439-4127 and Zsámberger, N.K. orcid.org/0000-0002-2822-129X (2024) Magnetohydrodynamic waves in asymmetric waveguides and their applications in solar physics—a review. Symmetry, 16 (9). 1228. ISSN 2073-8994
Abstract
The solar atmosphere is a complex, coupled, highly dynamic plasma environment, which shows rich structuring due to the presence of gravitational and magnetic fields. Several features of the Sun’s atmosphere can serve as guiding media for magnetohydrodynamic (MHD) waves. At the same time, these waveguides may contain flows of various magnitudes, which can then destabilise the waveguides themselves. MHD waves were found to be ubiquitously present in the solar atmosphere, thanks to the continuous improvement in the spatial, temporal, and spectral resolution of both space-born and ground-based observatories. These detections, coupled with recent theoretical advancements, have been used to obtain diagnostic information about the solar plasma and the magnetic fields that permeate it, by applying the powerful concept of solar magneto-seismology (SMS). The inclusion of asymmetric shear flows in the MHD waveguide models used may considerably affect the seismological results obtained. Further, they also influence the threshold for the onset of the Kelvin–Helmholtz instability, which, at high enough relative flow speeds, can lead to energy dissipation and contribute to the heating of the solar atmosphere—one of the long-standing and most intensely studied questions in solar physics.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Keywords: | the Sun; solar magnetic fields; solar atmosphere; solar oscillations; solar coronal seismology; solar coronal waves |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematical and Physical Sciences |
Funding Information: | Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL ST/M000826/1 EUROPEAN COMMISSION - HORIZON 2020 739500 EUROPEAN COMMISSION - HORIZON 2020 824135 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL ST/V003712/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 16 Oct 2024 11:16 |
Last Modified: | 16 Oct 2024 11:16 |
Status: | Published |
Publisher: | MDPI AG |
Refereed: | Yes |
Identification Number: | 10.3390/sym16091228 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:218375 |