Modeling the Effects of a Light Bridge on Properties of Magnetohydrodynamic Waves in Solar Pores

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.

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Publication Details

Journal
The Astrophysical Journal
Published
2024-10-24
DOI
https://doi.org/10.3847/1538-4357/ad7958
Citations
1
Primary Topic
Solar and Space Plasma Dynamics
Type
article
Field-Weighted Citation Impact
0.33

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article

Modeling the Effects of a Light Bridge on Properties of Magnetohydrodynamic Waves in Solar Pores

Sergiy Shelyag, S.N. Ruzheinikov, G. Verth, P. K. Browning et al.
1 citations
The Astrophysical Journal
Solar and Space Plasma Dynamics
0.33
article

Modeling the Effects of a Light Bridge on Properties of Magnetohydrodynamic Waves in Solar Pores

Sergiy Shelyag, S.N. Ruzheinikov, G. Verth, P. K. Browning, V. Fedun, Luiz A. C. A. Schiavo, J. A. McLaughlin, I. Ballai, Suzana S. A. Silva, Mykola Gordovskyy
article en
1 citations

Abstract

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.

The Astrophysical JournalVol. 975(1)
University of Hertfordshire (GB), Flinders University (AU), University of Manchester (GB), Northumbria University (GB), University of Sheffield (GB)
Royal Society, University of Cambridge, Science and Technology Facilities Council
Affordable and clean energy
Openalex Percentile: Top 34%
Solar and Space Plasma Dynamics
0.33
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Modeling the Effects of a Light Bridge on Properties of Magnetohydrodynamic Waves in Solar Pores — Sergiy Shelyag, S.N. Ruzheinikov, et al. · The Astrophysical Journal (2024) | TGRS Research Map | TGRS