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Related papers: Kink Oscillations in Solar Coronal Loops with Elli…

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One of the proposed damping mechanisms of coronal (transverse) loop oscillations in the kink-mode is resonant absorption as a result of the Alfven speed variation at the outer boundary of coronal loops. Analytical expressions for the period…

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

The ubiquity of recently discovered low-amplitude decayless kink oscillations of plasma loops allows for the seismological probing of the corona on a regular basis. In particular, in contrast to traditionally applied seismology which is…

Solar and Stellar Astrophysics · Physics 2019-11-06 Sergey A. Anfinogentov , Valery. M. Nakariakov

We simulate transverse oscillations in radiatively cooling coronal loops and forward-model their spectroscopic and imaging signatures, paying attention to the influence of background emission. The transverse oscillations are driven at one…

Solar and Stellar Astrophysics · Physics 2021-12-01 Mijie Shi , Tom Van Doorsselaere , Patrick Antolin , Bo Li

Coronal loop oscillations are common phenomena in the solar corona, which are often classified as decaying and decayless oscillations. Using the high-resolution observation measured by the Extreme Ultraviolet Imager (EUI) onboard the Solar…

Solar and Stellar Astrophysics · Physics 2023-02-15 Dong Li , David M. Long

Kink oscillations of a coronal loop are observed and studied in detail because they provide a unique probe into the structure of coronal loops through MHD seismology and a potential test of coronal heating through the phase-mixing of…

Solar and Stellar Astrophysics · Physics 2018-08-29 P. Pagano , D. J. Pascoe , I. De Moortel

Observations of transversal coronal loop oscillations very often show the excitation and damping of oscillations in groups of coronal loops rather than in individual and isolated structures. We present results on the oscillatory properties…

Astrophysics · Physics 2009-11-13 Inigo Arregui , Jaume Terradas , Ramon Oliver , Jose Luis Ballester

The driving and excitation mechanisms of decay-less kink oscillations in coronal loops remain under debate. We aim to quantify and provide simple observational constraints on the photospheric driving of oscillating coronal loops in a few…

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

We report our multiwavelength observations of two homologous circular-ribbon flares (CRFs) in active region 11991 on 2014 March 5, focusing on the transverse oscillations of an extreme-ultraviolet (EUV) loop excited by the flares. The…

Solar and Stellar Astrophysics · Physics 2020-07-01 Q. M. Zhang , J. Dai , Z. Xu , D. Li , L. Lu , K. V. Tam , A. A. Xu

The collective transverse coronal loop oscillations seem to be detected in the observational studies. In this regard, Luna et al. (2009, ApJ, 692, 1582) modeled the collective kinklike normal modes of several cylindrical loops system using…

Solar and Stellar Astrophysics · Physics 2019-09-02 Narges Fathalian , Hossein Safari

A coronal loop of 290~Mm length, observed at 171~\AA\ with SDO/AIA on February 6th 2024 near AR 13571, is found to oscillate with two significantly different oscillation periods, $48.8 \pm 6.1$~min and $4.8\pm 0.3$~min. The oscillations…

Solar and Stellar Astrophysics · Physics 2025-10-15 Sihui Zhong , Valery M. Nakariakov , Dmitrii Y. Kolotkov

Solar coronal loops represent the variety of fast, intermediate, and slow normal mode oscillations. In this study, the transverse oscillations of the loops with a few-minutes period and also with damping caused by the resonant absorption…

Solar and Stellar Astrophysics · Physics 2019-02-27 Javad Ganjali , Nastaran Farhang , Shahriar Esmaeili , Mohsen Javaherian , Hossein Safari

Kink oscillations in coronal loops have been extensively studied for their potential contributions to coronal heating and their role in plasma diagnostics through coronal seismology. A key focus is the strong damping of large-amplitude kink…

Solar and Stellar Astrophysics · Physics 2025-08-25 Sihui Zhong , Andrew Hillier , Iñigo Arregui

Seismology of coronal loops using observations of damped transverse oscillations in combination with results from theoretical models is a tool to indirectly infer physical parameters in the solar atmospheric plasma. Existing seismology…

Solar and Stellar Astrophysics · Physics 2015-06-18 Roberto Soler , Marcel Goossens , Jaume Terradas , Ramon Oliver

Context. Transverse oscillations are ubiquitously observed in the solar corona, both in coronal loops and open magnetic flux tubes. Numerical simulations suggest that their dissipation could heat coronal loops, counterbalancing radiative…

Solar and Stellar Astrophysics · Physics 2023-04-12 Gabriel Pelouze , Tom Van Doorsselaere , Konstantinos Karampelas , Julia M. Riedl , Timothy Duckenfield

Large-amplitude decaying kink oscillations of coronal loops are strongly influenced by nonlinear processes, such as Kelvin-Helmholtz instability (KHI) and turbulence, though comprehensive theory and observational confirmation remain…

Solar and Stellar Astrophysics · Physics 2026-02-13 Sihui Zhong , Andrew Hillier , Iñigo Arregui

Recent observations have revealed two types of decayless transverse oscillations in short coronalloops: one with short periods scaling with loop lengths, and the other with longer periods that exhibit a peak at around 5 min in the period…

Solar and Stellar Astrophysics · Physics 2023-08-29 Yuhang Gao , Mingzhe Guo , Tom Van Doorsselaere , Hui Tian , Samuel J. Skirvin

Decayless kink oscillations, characterized by their lack of decay in amplitude, have been detected in coronal loops of varying scales in active regions, quiet Sun and coronal holes. Short-period (< 50 s) decayless oscillations have been…

Solar coronal loops are commonly subject to oscillations. Observations of coronal oscillations are used to infer physical properties of the coronal plasma using coronal seismology. Excitation and evolution of oscillations in coronal loops…

Solar and Stellar Astrophysics · Physics 2021-03-17 P. Kohutova , A. Popovas