Schiavo, L.A.C.A. orcid.org/0000-0002-5082-1398, Gordovskyy, M. orcid.org/0000-0003-2291-4922, Browning, P.K. orcid.org/0000-0002-7089-5562 et al. (7 more authors) (2024) Modeling the effects of a light bridge on properties of magnetohydrodynamic waves in solar pores. The Astrophysical Journal, 975 (1). 45. ISSN 0004-637X
Abstract
Solar pores are ideal magnetic structures for wave propagation and transport of energy radially outwards across the upper layers of the solar atmosphere. We aim to model the excitation and propagation of magnetohydrodynamic waves in a pore with a light bridge modeled as two interacting magnetic flux tubes separated by a thin, weaker-field layer. We solve the three-dimensional magnetohydrodynamic equations numerically and calculate the circulation as a measure of net torsional motion. We find that the interaction between flux tubes results in the natural excitation of propagating torsional Alfvén waves but find no torsional waves in the model with a single flux tube. The torsional Alfvén waves propagate with wave speeds matching the local Alfvén speed where wave amplitude peaks.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024. The Author(s). Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. http://creativecommons.org/licenses/by/4.0/ |
Keywords: | Magnetohydrodynamics (1964); Solar oscillations (1515); Solar physics (1476); Solar photosphere (1518); Solar magnetic fields (1503) |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > School of Electrical and Electronic Engineering The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematical and Physical Sciences The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Automatic Control and Systems Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 28 Oct 2024 15:57 |
Last Modified: | 28 Oct 2024 15:57 |
Status: | Published |
Publisher: | American Astronomical Society |
Refereed: | Yes |
Identification Number: | 10.3847/1538-4357/ad7958 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:218932 |