Solar Coronal Loop Dynamics

Dear Colleagues,

Since the era of Skylab, the discovery that a significant part of the energy emission from the solar corona is concentrated along well-defined curved paths, coronal loops, represents a major advance in our understanding of the Sun. Such magnetized plasma loops are the basic structural elements of the corona, particularly in and over solar-active regions. In fact, one may imagine that the corona is entirely composed of nested coronal loops with varying lengths, temperatures, densities, and activity levels, and should be ubiquitous in sun-like stars as well as in the Sun. The formation, oscillation, and interaction of coronal loops may mostly reflect and dominate the coronal heating processes and the details of the origin of solar eruptions, including solar flares, coronal mass ejections, eruptive filaments, and various scales of plasma jets, and even the origin and evolution of solar wind.

The dynamics of coronal loops include the magnetic field and its evolution; energy transport and release; heating, cooling and condensation; particle acceleration and emission; the evolution of waves and oscillations in the loops and the interactions between different loops; and the triggering and onset of MHD instabilities, etc. The dynamics of coronal loops may also connect with the unseen solar interior, revealing the interior structures, presenting the precursors of emerging active regions, and providing diagnostic tools through coronal loop seismology. In the past few decades, owing to the large number of observations from novel designed instruments, such as the space telescopes SOHO, TRACE, Hinode, STEREO, SDO, PSP, and SolO; many ground-based optic telescopes globally; and the ground-based radio telescopes NRH, NoRH, MUSER, and EVOSA, as well as JVLA, ALMA, LOFAR, MWA, etc., we have made great progress in the research of coronal loop dynamics with simulations and theoretical explanations.

We invite colleagues to submit their recent papers on one or more of the following topics for this Special Issue:

1. New interesting observations of coronal loops;
2. Magnetic field diagnostics and extrapolation;
3. Waves and oscillations in coronal loops;
4. Interactions between coronal loops;
5. Heating, cooling, and condensation;
6. Particle acceleration and radio emission in coronal loops;
7. The triggering and onset of MHD instabilities;
8. The evolution of the whole lives of coronal loops.

Prof. Dr. Yihua Yan
Prof. Dr. Baolin Tan
Guest Editors

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• Coronal loops
• Magnetic fields
• Oscillations
• Heating and cooling
• Emission
• Evolution