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Standing Kink Waves in Sigmoid Solar Coronal Loops: Implications for Coronal Seismology [PDF]
The Astrophysical Journal Letters, 2020 Abstract Using full three-dimensional magnetohydrodynamic numerical simulations, we study the effects of magnetic field sigmoidity or helicity on the properties of the fundamental kink oscillation of solar coronal loops. Our model consists of a single denser coronal loop, embedded in a plasma with dipolar force-free magnetic field with a
N. Magyar, V. M. Nakariakov
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Resolved magnetohydrodynamic wave lensing in the solar corona [PDF]
Nature CommunicationsElectromagnetic wave lensing, a common physical phenomenon recognized in visible light for centuries, finds extensive applications in manipulating light in optical systems such as telescopes and cameras.
Xinping Zhou +8 more
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Wave heating of the solar atmosphere. [PDF]
Philos Trans A Math Phys Eng Sci, 2015 Magnetic waves are a relevant component in the dynamics of the solar atmosphere. Their significance has increased because of their potential as a remote diagnostic tool and their presumed contribution to plasma heating processes.
Arregui I.
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Seismological constraints on the solar coronal heating function [PDF]
Astronomy & Astrophysics, 2020 Aims. The hot solar corona exists because of the balance between radiative and conductive cooling and some counteracting heating mechanism that remains one of the major puzzles in solar physics. Methods. The coronal thermal equilibrium is perturbed by magnetoacoustic waves, which are abundantly present in the corona, causing a misbalance between the ...
D. Y. Kolotkov +2 more
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Recent Applications of Bayesian Methods to the Solar Corona
Frontiers in Astronomy and Space Sciences, 2022 Solar coronal seismology is based on the remote diagnostics of physical conditions in the corona of the Sun by comparison between model predictions and observations of magnetohydrodynamic wave activity.
Iñigo Arregui, Iñigo Arregui
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Research progress in coronal magnetic field measurements
地球与行星物理论评, 2022 Different solar atmospheric layers are connected by the magnetic field of the Sun, which is the primary source for various types of solar activity. The magnetic activity of the Sun has a significant impact on the solar-terrestrial environment and human ...
Zihao Yang +6 more
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The Astrophysical Journal, 2023 The lack of observed sausage perturbations in solar active region loops is customarily attributed to the relevance of cutoff axial wavenumbers and the consequent absence of trapped modes (called “evanescent eigenmodes” here).
Zexing Wang +3 more
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MAGNETOHYDRODYNAMIC SLOW MODE WITH DRIFTING He++: IMPLICATIONS FOR CORONAL SEISMOLOGY AND THE SOLAR WIND [PDF]
The Astrophysical Journal, 2014 The MHD slow mode wave has application to coronal seismology, MHD turbulence, and the solar wind where it can be produced by parametric instabilities. We consider analytically how a drifting ion species (e.g. He$^{++}$) affects the linear slow mode wave in a mainly electron-proton plasma, with potential consequences for the aforementioned applications.
Hollweg, JV +2 more
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Coronal seismology by slow waves in non-adiabatic conditions
Frontiers in Astronomy and Space Sciences, 2022 Slow magnetoacoustic waves represent an important tool for probing the solar coronal plasma. The majority of seismological methods with slow waves are based on a weakly non-adiabatic approach, which assumes the coronal energy transport has only weak ...
Dmitrii Y. Kolotkov
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Solar coronal magnetic fields derived using seismology techniques applied to omnipresent sunspot waves [PDF]
Nature Physics, 2015 Published in Nature Physics, 12, 179 (2016; DOI:10.1038/nphys3544).
David B. Jess +11 more
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