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The Role of High-frequency Transverse Oscillations in Coronal Heating

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dc.contributor.author Lim, Daye
dc.contributor.author Doorsselaere, Tom Van
dc.contributor.author Berghmans, David
dc.contributor.author Morton, Richard J.
dc.contributor.author Pant, Vaibhav
dc.contributor.author Mandal, Sudip
dc.date.accessioned 2024-02-20T05:44:44Z
dc.date.available 2024-02-20T05:44:44Z
dc.date.issued 2023-07
dc.identifier.uri https://doi.org/10.3847/2041-8213/ace423
dc.identifier.uri http://localhost:8080/xmlui/handle/123456789/1450
dc.description.abstract Transverse oscillations that do not show significant damping in solar coronal loops are found to be ubiquitous. Recently, the discovery of high-frequency transverse oscillations in small-scale loops has been accelerated by the Extreme Ultraviolet Imager on board Solar Orbiter. We perform a meta-analysis by considering the oscillation parameters reported in the literature. Motivated by the power law of the velocity power spectrum of propagating transverse waves detected with CoMP, we consider the distribution of energy fluxes as a function of oscillation frequencies and the distribution of the number of oscillations as a function of energy fluxes and energies. These distributions are described as a power law. We propose that the power-law slope (δ = −1.40) of energy fluxes depending on frequencies could be used for determining whether high-frequency oscillations dominate the total heating (δ < 1) or not (δ > 1). In addition, we found that the oscillation number distribution depending on energy fluxes has a power-law slope of α = 1.00, being less than 2, which means that oscillations with high energy fluxes provide the dominant contribution to the total heating. It is shown that, on average, higher energy fluxes are generated from higher-frequency oscillations. The total energy generated by transverse oscillations ranges from about 1020 to 1025 erg, corresponding to the energies for nanoflare (1024–1027 erg), picoflare (1021–1024 erg), and femtoflare (1018–1021 erg). The respective slope results imply that high-frequency oscillations could provide the dominant contribution to total coronal heating generated by decayless transverse oscillations. en_US
dc.language.iso en en_US
dc.publisher Astrophysical Journal Letters en_US
dc.relation.ispartofseries 2022;apjl952-L15
dc.subject Solar coronal heating en_US
dc.subject Solar oscillations en_US
dc.subject Solar coronal waves en_US
dc.title The Role of High-frequency Transverse Oscillations in Coronal Heating en_US
dc.type Article en_US


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