4 papers
Power-law Indices of EUV Intensity Power Spectrum in Flaring Coronal Active Regions
Sihui Zhong, Dmitrii Y. Kolotkov, Valery M. Nakariakov
Solar intensity power spectra are usually characterised by coloured noise, with the spectral energy following a segmented power-law function of frequency, , ov…
Signatures of Damping Nonlinear Oscillations by KHI-induced Turbulence in Synthetic Observations
Sihui Zhong, Andrew Hillier, Iñigo Arregui
Large-amplitude decaying kink oscillations of coronal loops are strongly influenced by nonlinear processes, such as Kelvin-Helmholtz instability (KHI) and turbulence, though compre…
A 50-min coronal kink oscillation and its possible photospheric counterpart
Sihui Zhong, Valery M. Nakariakov, Dmitrii Y. Kolotkov
A coronal loop of 290~Mm length, observed at 171~Ã with SDO/AIA on February 6th 2024 near AR 13571, is found to oscillate with two significantly different oscillation periods, $48.…
Identification of Nonlinear Damping of Transverse Loop Oscillations by KHI-induced Turbulence
Sihui Zhong, Andrew Hillier, Iñigo Arregui
Kink oscillations in coronal loops have been extensively studied for their potential contributions to coronal heating and their role in plasma diagnostics through coronal seismolog…