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astro-ph.SR2024★ 2 cited
On the Nature of Nonthermal Broadening of Spectral Lines Observed by IRIS
Kyuhyoun Cho, Bart De Pontieu, Paola Testa
The origin of nonthermal broadening in solar spectra is one of the long-standing questions in solar physics. Various processes have been invoked - including unresolved flows, waves…
astro-ph.SR2024
Coronal energy release by MHD avalanches II. EUV line emission from a multi-threaded coronal loop
G. Cozzo, J. Reid, P. Pagano +13
MHD kink instability can trigger the fragmentation of a twisted magnetic flux tube into small-scale current sheets that dissipate as aperiodic impulsive heating events. This instab…