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Quasi-periodic pulsations of gamma-ray emissions from a solar flare on 2017 September 06
D. Li, D. Y. Kolotkov, V. M. Nakariakov +2
We investigate quasi-periodic pulsations (QPPs) of high-energy nonthermal emissions from an X9.3 flare (SOL2017-Sep-06T11:53), the most powerful flare since the beginning of solar…
A New Type of Jets in a Polar Limb of Solar Coronal Hole
Il-Hyun Cho, Yong-Jae Moon, Kyung-Suk Cho +3
A new type of chromospheric jets in a polar limb of a coronal hole is discovered in the Ca II filtergram of the Solar Optical Telescope on board the \textit{Hinode}. We identify 30…
A blueprint of state-of-the-art techniques for detecting quasi-periodic pulsations in solar and stellar flares
Anne-Marie Broomhall, James R. A. Davenport, Laura A. Hayes +9
Quasi-periodic pulsations (QPPs) appear to be a common feature observed in the light curves of both solar and stellar flares. However, their quasi-periodic nature, along with the f…
Magnetohydrodynamic Seismology of Quiet Solar Active Regions
Sergey A. Anfinogentov, Valery. M. Nakariakov
The ubiquity of recently discovered low-amplitude decayless kink oscillations of plasma loops allows for the seismological probing of the corona on a regular basis. In particular,…
Evidence for Vortex Shedding in the Sun's Hot Corona
Tanmoy Samanta, Hui Tian, Valery M. Nakariakov
Vortex shedding is an oscillating flow that is commonly observed in fluids due to the presence of a blunt body in a flowing medium. Numerical simulations have shown that the phenom…
Formation of quasi-periodic slow magnetoacoustic wave trains by the heating/cooling misbalance
D. I. Zavershinskii, D. Y. Kolotkov, V. M. Nakariakov +2
Slow magnetoacoustic waves are omnipresent in both natural and laboratory plasma systems. The wave-induced misbalance between plasma cooling and heating processes causes the amplif…