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Impulsively excited wave trains are of considerable interest in solar coronal seismology. To our knowledge, however, it remains to examine the three-dimensional (3D) dispersive propagation of impulsive kink waves in straight, field-aligned,…

Solar and Stellar Astrophysics · Physics 2022-11-16 Bo Li , Mingzhe Guo , Hui Yu , Shao-Xia Chen , Mijie Shi

We numerically follow the response of density-enhanced slabs to impulsive, localized, transverse velocity perturbations by working in the framework of ideal magnetohydrodynamics (MHD). Both linear and nonlinear regimes are addressed. Kink…

Solar and Stellar Astrophysics · Physics 2022-08-03 Mingzhe Guo , Bo Li , Tom Van Doorsselaere , Mijie Shi

The theory of magnetohydrodynamic (MHD) waves in solar coronal slabs in a zero-$\beta$ configuration and for parallel propagation of waves does not allow the existence of surface waves. When oblique propagation of perturbations is…

Astrophysics · Physics 2009-11-13 I. Arregui , J. Terradas , R. Oliver , J. L. Ballester

Context. In the coronal open-field regions, such as coronal holes, there are many transverse waves propagating along magnetic flux tubes, generally interpreted as kink waves. Previous studies have highlighted their potential in coronal…

Solar and Stellar Astrophysics · Physics 2024-09-18 Yuhang Gao , Tom Van Doorsselaere , Hui Tian , Mingzhe Guo , Konstantinos Karampelas

Recent observations by Hinode/SOT show that MHD waves and mass flows are simultaneously present in the fine structure of solar prominences. We investigate standing kink magnetohydrodynamic (MHD) waves in flowing prominence threads from a…

Solar and Stellar Astrophysics · Physics 2015-05-28 Roberto Soler , Marcel Goossens

Aims. We construct a new analytical model of a solar coronal loop that is embedded in a gravitationally stratified and magnetically confined atmosphere. On the basis of this analytical model, we devise a numerical model of solar coronal…

Solar and Stellar Astrophysics · Physics 2015-03-25 K. Murawski , A. Solov'ev , J. Kraskiewicz , A. K. Srivastava

We aim to provide more insights into the applicability to solar coronal seismology of the much-studied discrete leaky modes (DLMs) in classic analyses. Under linear ideal pressureless MHD, we examine two-dimensional (2D) axial fundamental…

Solar and Stellar Astrophysics · Physics 2024-11-18 Yuhong Gao , Bo Li , Mijie Shi , Shaoxia Chen , Hui Yu

Recent observations have revealed the ubiquitous presence of magnetohydrodynamic (MHD) waves and oscillations in the solar corona. The aim of this review is to present recent progress in the observational study of four types of wave (or…

Solar and Stellar Astrophysics · Physics 2018-04-02 Tongjiang Wang

It is known that hydrodynamic triangular jets are unstable to antisymmetric kink perturbations. The inclusion of magnetic field may lead to the stabilisation of the jets. Jets and complex magnetic fields are ubiquitous in the solar…

Solar and Stellar Astrophysics · Physics 2021-06-02 T. V. Zaqarashvili , S. Lomineishvili , P. Leitner , A. Hanslmeier , P. Gömöry , M. Roth

Decayless kink oscillations are frequently observed in solar coronal loops and are considered potential contributors to coronal heating. Despite the ubiquity of this wave phenomenon, its driving mechanism remains unclear. Studies to derive…

Solar and Stellar Astrophysics · Physics 2026-03-04 Sudip Mandal , Cosima Breu , Hardi Peter

Kink oscillations are ubiquitously observed in solar coronal loops, their understanding being crucial in the contexts of coronal seismology and atmospheric heating. We study kink modes supported by a straight coronal loop embeded in an…

Solar and Stellar Astrophysics · Physics 2024-02-20 Mijie Shi , Bo Li , Shengju Yuan

Magnetohydrodynamic (MHD) kink waves have been observed frequently in solar coronal flux tubes, which makes them a great tool for seismology of the solar corona. Here, the effect of viscosity is studied on the evolution of kink waves. To…

Solar and Stellar Astrophysics · Physics 2020-05-12 Zanyar Ebrahimi , Roberto Soler , Kayoomars Karami

It has been shown that resonant absorption is a robust physical mechanism to explain the observed damping of magnetohydrodynamic (MHD) kink waves in the solar atmosphere due to naturally occurring plasma inhomogeneity in the direction…

Solar and Stellar Astrophysics · Physics 2015-05-28 Roberto Soler , Jaume Terradas , Gary Verth , Marcel Goossens

We examine resonantly damped kink modes in straight coronal slabs, paying special attention to the effects of the formulation for the transverse density distribution ("profile"). We work in the framework of pressure-less, gravity-free,…

Solar and Stellar Astrophysics · Physics 2021-06-23 Hui Yu , Bo Li , Shaoxia Chen , Mingzhe Guo

Magnetohydrodynamic (MHD) waves are ubiquitously observed in the solar atmosphere. Kink waves are a type of transverse MHD waves in magnetic flux tubes that are damped due to resonant absorption. The theoretical study of kink MHD waves in…

Solar and Stellar Astrophysics · Physics 2015-06-17 Roberto Soler , Marcel Goossens , Jaume Terradas , Ramon Oliver

Kink magnetohydrodynamic (MHD) waves are frequently observed in various magnetic structures of the solar atmosphere. They may contribute significantly to coronal heating and could be used as a tool to diagnose the solar plasma. In this…

Solar and Stellar Astrophysics · Physics 2016-04-27 Ding Yuan , Tom Van Doorsselaere

There is observational evidence of propagating kink waves driven by photospheric motions. These disturbances, interpreted as kink magnetohydrodynamic (MHD) waves are attenuated as they propagate upwards in the solar corona. In this paper we…

Solar and Stellar Astrophysics · Physics 2015-05-18 J. Terradas , M. Goossens , G. Verth

The cross sections of solar coronal loops are suggested to be rarely circular. We examine linear kink oscillations in straight, density-enhanced, magnetic cylinders with elliptical cross-sections by solving the three-dimensional…

Solar and Stellar Astrophysics · Physics 2020-12-02 Mingzhe Guo , Bo Li , Tom Van Doorsselaere

Kink oscillations are frequently observed in coronal loops. This work aims to numerically clarify the influence of loop curvature on horizontally and vertically polarized kink oscillations. Working within the framework of ideal MHD, we…

Solar and Stellar Astrophysics · Physics 2024-04-09 Mingzhe Guo , Tom Van Doorsselaere , Bo Li , Marcel Goossens

There has been considerable interest in magnetoacoustic waves in static, straight, field-aligned, one-dimensional equilibria where the exteriors of a magnetic slab are different between the two sides. We focus on trapped, transverse…

Solar and Stellar Astrophysics · Physics 2022-12-07 Shao-Xia Chen , Bo Li , Mingzhe Guo , Mijie Shi , Hui Yu
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