dc.contributor.author | Hillier, A | |
dc.contributor.author | Van Doorsselaere, T | |
dc.contributor.author | Karampelas, K | |
dc.date.accessioned | 2020-06-22T13:17:00Z | |
dc.date.issued | 2020-07-01 | |
dc.description.abstract | Kelvin-Helmholtz instability induced turbulence is one promising mechanism by which loops in the
solar corona can be heated by MHD waves. In this paper we present an analytical model of the
dissipation rate of Kelvin-Helmholtz instability induced turbulence εD, finding it scales as the wave
amplitude (d) to the third power (εD ∝ d
3
). Based on the concept of steady-state turbulence, we
expect the turbulence heating throughout the volume of the loop to match the total energy injected
through its footpoints. In situations where this holds, the wave amplitude has to vary as the cube-root
of the injected energy. Comparing the analytic results with those of simulations shows that our analytic
formulation captures the key aspects of the turbulent dissipation from the numerical work. Applying
this model to the observed characteristics of decayless kink waves we predict that the amplitudes of
these observed waves is insufficient to turbulently heat the solar corona. | en_GB |
dc.description.sponsorship | Science and Technology Facilities Council (STFC) | en_GB |
dc.identifier.citation | Vol. 897 (1), article L13 | en_GB |
dc.identifier.doi | 10.3847/2041-8213/ab9ca3 | |
dc.identifier.grantnumber | ST/L00397X/2 | en_GB |
dc.identifier.grantnumber | ST/R000891/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/121579 | |
dc.language.iso | en | en_GB |
dc.publisher | IOP Publishing / American Astronomical Society | en_GB |
dc.rights | © 2020. The American Astronomical Society. All rights reserved. | |
dc.title | Estimating the energy dissipation from Kelvin-Helmholtz instability induced turbulence in oscillating coronal loops | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2020-06-22T13:17:00Z | |
dc.identifier.issn | 2041-8205 | |
dc.description | This is the final version. Available from IOP Publishing via the DOI in this record | en_GB |
dc.identifier.journal | Astrophysical Journal Letters | en_GB |
dc.rights.uri | http://www.rioxx.net/licenses/all-rights-reserved | en_GB |
dcterms.dateAccepted | 2020-06-12 | |
exeter.funder | ::Science and Technology Facilities Council | en_GB |
exeter.funder | ::Science and Technology Facilities Council | en_GB |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2020-06-12 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2020-06-22T09:19:24Z | |
refterms.versionFCD | AM | |
refterms.dateFOA | 2020-07-13T08:25:17Z | |
refterms.panel | B | en_GB |