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Undersampling effects on observed periods of coronal oscillations
Daye Lim, Tom Van Doorsselaere, Valery M. Nakariakov +3
Context. Recent observations of decayless transverse oscillations have shown two branches in the relationship between periods and loop lengths. One is a linear relationship, interp…
Effects of the photospheric cut-off on the p-mode frequency stability
Dmitrii Y. Kolotkov, Anne-Marie Broomhall, Amir Hasanzadeh
Sub-photospheric acoustic resonators allow for the formation of standing p-mode oscillations by reflecting acoustic waves with frequencies below the acoustic cut-off frequency. We…
Detecting quasi-periodic pulsations in solar and stellar flares with a neural network
Sergey A. Belov, Dmitrii Y. Kolotkov, Valery M. Nakariakov +1
Quasi-periodic pulsations (QPP) are often detected in solar and stellar flare lightcurves. These events may contain valuable information about the underlying fundamental plasma dyn…
Transition from decaying to decayless kink oscillations of solar coronal loops
Valery M. Nakariakov, Yu Zhong, Dmitrii Y. Kolotkov
The transition of an impulsively excited kink oscillation of a solar coronal loop to an oscillation with a stationary amplitude, i.e., the damping pattern, is determined using the…
Diagnostics of the solar coronal plasmas by magnetohydrodynamic waves: Magnetohydrodynamic seismology
Valery M. Nakariakov, Sihui Zhong, Dmitrii Y. Kolotkov +3
Macroscopic wave and oscillatory phenomena ubiquitously detected in the plasma of the corona of the Sun are interpreted in terms of magnetohydrodynamic theory. Fast and slow magnet…