Resonant fast-Alfvén wave coupling in a 3D coronal arcade

Andrew N. Wright; Tom Elsden

doi:10.3390/physics5010023

Resonant fast-Alfvén wave coupling in a 3D coronal arcade

Andrew N. Wright^*, Tom Elsden

^*Corresponding author for this work

Applied Mathematics

Research output: Contribution to journal › Article › peer-review

Abstract

The resonant excitation of Alfvén waves using the fast magnetosonic mode is important in space plasmas. In this paper, we consider a simple model of a three-dimensional (3D) coronal arcade. A numerical approach is used to produce a driven normal mode. We find that resonant coupling can occur in 3D, but there are new features that are absent in 2D. In particular, the polarisation of the Alfvén waves can vary with position throughout the Resonant Zone. Moreover, there are an infinite number of possible paths the resonant waves can exist on.

Original language	English
Pages (from-to)	310-321
Number of pages	12
Journal	Physics
Volume	5
Issue number	1
DOIs	https://doi.org/10.3390/physics5010023
Publication status	Published - 17 Mar 2023

Keywords

Magnetohydrodynamic waves
Resonance wave coupling
Coronal arcade

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10.3390/physics5010023Licence: CC BY

Wright_2023_Physics_Resonant-fast-Alfven_CC
Copyright: © 2023 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/).
Final published version, 2.15 MBLicence: CC BY

Solar and Magnetospheric Plasmas: Solar and Magnetospheric Plasmas: Theory and Application
Neukirch, T. (PI), Archontis, V. (CoI), De Moortel, I. (CoI), Hood, A. W. (CoI), Mackay, D. H. (CoI), Parnell, C. E. (CoI) & Wright, A. N. (CoI)
Science & Technology Facilities Council
1/04/22 → 31/03/25
Project: Standard

Data for Wright, Elsden - 2023 - Resonant Fast-Alfven wave coupling in a 3-D Coronal Arcade
Elsden, T. (Creator), Figshare, 2023
DOI: 10.6084/m9.figshare.21975869.v1
Dataset

Cite this

@article{bd16ca495a174fb08afdae1acb3619e8,

title = "Resonant fast-Alfv{\'e}n wave coupling in a 3D coronal arcade",

abstract = "The resonant excitation of Alfv{\'e}n waves using the fast magnetosonic mode is important in space plasmas. In this paper, we consider a simple model of a three-dimensional (3D) coronal arcade. A numerical approach is used to produce a driven normal mode. We find that resonant coupling can occur in 3D, but there are new features that are absent in 2D. In particular, the polarisation of the Alfv{\'e}n waves can vary with position throughout the Resonant Zone. Moreover, there are an infinite number of possible paths the resonant waves can exist on.",

keywords = "Magnetohydrodynamic waves, Resonance wave coupling, Coronal arcade",

author = "Wright, {Andrew N.} and Tom Elsden",

note = "Funding: This research was funded in part by STFC grant ST/W001195/1 (A.N.W.). T.E. was funded in part by a Leverhulme Early Career Fellowship ECF-2019-155.",

year = "2023",

month = mar,

day = "17",

doi = "10.3390/physics5010023",

language = "English",

volume = "5",

pages = "310--321",

journal = "Physics",

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TY - JOUR

T1 - Resonant fast-Alfvén wave coupling in a 3D coronal arcade

AU - Wright, Andrew N.

AU - Elsden, Tom

N1 - Funding: This research was funded in part by STFC grant ST/W001195/1 (A.N.W.). T.E. was funded in part by a Leverhulme Early Career Fellowship ECF-2019-155.

PY - 2023/3/17

Y1 - 2023/3/17

N2 - The resonant excitation of Alfvén waves using the fast magnetosonic mode is important in space plasmas. In this paper, we consider a simple model of a three-dimensional (3D) coronal arcade. A numerical approach is used to produce a driven normal mode. We find that resonant coupling can occur in 3D, but there are new features that are absent in 2D. In particular, the polarisation of the Alfvén waves can vary with position throughout the Resonant Zone. Moreover, there are an infinite number of possible paths the resonant waves can exist on.

AB - The resonant excitation of Alfvén waves using the fast magnetosonic mode is important in space plasmas. In this paper, we consider a simple model of a three-dimensional (3D) coronal arcade. A numerical approach is used to produce a driven normal mode. We find that resonant coupling can occur in 3D, but there are new features that are absent in 2D. In particular, the polarisation of the Alfvén waves can vary with position throughout the Resonant Zone. Moreover, there are an infinite number of possible paths the resonant waves can exist on.

KW - Magnetohydrodynamic waves

KW - Resonance wave coupling

KW - Coronal arcade

U2 - 10.3390/physics5010023

DO - 10.3390/physics5010023

M3 - Article

SN - 2624-8174

VL - 5

SP - 310

EP - 321

JO - Physics

JF - Physics

IS - 1

ER -

Resonant fast-Alfvén wave coupling in a 3D coronal arcade

Abstract

Keywords

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Projects

Solar and Magnetospheric Plasmas: Solar and Magnetospheric Plasmas: Theory and Application

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Data for Wright, Elsden - 2023 - Resonant Fast-Alfven wave coupling in a 3-D Coronal Arcade

Cite this