Connecting theory of plasmoid-modulated reconnection to observations of solar flares
dc.contributor.author | Hillier, A | |
dc.contributor.author | Takasao, S | |
dc.date.accessioned | 2023-02-15T10:04:30Z | |
dc.date.issued | 2022-11-25 | |
dc.date.updated | 2023-02-14T21:56:33Z | |
dc.description.abstract | The short timescale of the solar flare reconnection process has long proved to be a puzzle. Recent studies suggest the importance of the formation of plasmoids in the reconnecting current sheet, with quantifying the aspect ratio of the width to length of the current sheet in terms of a negative power α of the Lundquist number, that is, S-α, being key to understanding the onset of plasmoids formation. In this paper, we make the first application of theoretical scalings for this aspect ratio to observed flares to evaluate how plasmoid formation may connect with observations. For three different flares that show plasmoids we find a range of α values of α.0:26 to 0:31. The values in this small range implies that plasmoids may be forming before the theoretically predicted critical aspect ratio (α = 1/3) has been reached, potentially presenting a challenge for the theoretical models. | en_GB |
dc.description.sponsorship | Science and Technology Facilities Council (STFC) | en_GB |
dc.description.sponsorship | Japan Society for the Promotion of Science | en_GB |
dc.identifier.citation | Vol. 3, article e26 | en_GB |
dc.identifier.doi | https://doi.org/10.1017/exp.2022.23 | |
dc.identifier.grantnumber | ST/V000659/1 | en_GB |
dc.identifier.grantnumber | JP22H00134 | en_GB |
dc.identifier.grantnumber | JP22K14074 | en_GB |
dc.identifier.grantnumber | JP21H04487 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/132476 | |
dc.identifier | ORCID: 0000-0002-0851-5362 (Hillier, Andrew) | |
dc.language.iso | en | en_GB |
dc.publisher | Cambridge University Press | en_GB |
dc.rights | © The Author(s), 2022. Published by Cambridge University Press. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited. | en_GB |
dc.subject | instabilities | en_GB |
dc.subject | magnetic reconnection | en_GB |
dc.subject | MHD | en_GB |
dc.subject | solar flares | en_GB |
dc.subject | sun | en_GB |
dc.title | Connecting theory of plasmoid-modulated reconnection to observations of solar flares | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2023-02-15T10:04:30Z | |
dc.identifier.issn | 2516-712X | |
exeter.article-number | e26 | |
dc.description | This is the final version. Available on open access from Cambridge University Press via the DOI in this record. | en_GB |
dc.description | Data availability statement: The data used in this paper are available already in other published works | en_GB |
dc.identifier.journal | Experimental Results | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2022-10-27 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2022-11-25 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2023-02-15T10:01:13Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2023-02-15T10:04:34Z | |
refterms.panel | B | en_GB |
refterms.dateFirstOnline | 2022-11-25 |
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Except where otherwise noted, this item's licence is described as © The Author(s), 2022. Published by Cambridge University Press. This is an Open Access article, distributed under the terms of the Creative
Commons Attribution licence (http://creativecommons.org/licenses/by/4.0), which permits unrestricted re-use, distribution and reproduction,
provided the original article is properly cited.