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Article: The role of ionospheric O+ outflow in the generation of earthward propagating plasmoids

TitleThe role of ionospheric O<sup>+</sup> outflow in the generation of earthward propagating plasmoids
Authors
Keywordsglobal simulations
magnetic reconnection
plasmoids
magnetotail
ionospheric outflow
Issue Date2016
Citation
Journal of Geophysical Research A: Space Physics, 2016, v. 121, n. 2, p. 1425-1435 How to Cite?
Abstract©2015. American Geophysical Union. All Rights Reserved. Earthward propagating plasmoids in the Earth's magnetotail have been observed by satellites. Using a multifluid global magnetosphere simulation, earthward propagating plasmoids are reproduced when ionospheric O + outflow is included in the global simulation. Controlled simulations show that without ionospheric outflow, the plasmoids generated in the magnetotail during a substorm-steady magnetospheric convection cycle only propagate tailward. With ionospheric outflow, earthward plasmoids can be induced through the modification of magnetotail reconnection at multiple X lines. When multiple X lines form in the magnetotail, plasmoids may be trapped between multiple reconnection sites. When magnetic reconnection rate is reduced at the near-Earth X line by the presence of ionospheric O + , the earthward exhaust flow of reconnection occurring at the midtail X line forces the plasmoid to propagate earthward. The propagation speed and spatial size of the simulated earthward plasmoid are consistent with observations from the Cluster satellites.
Persistent Identifierhttp://hdl.handle.net/10722/251145
ISSN
2023 Impact Factor: 2.6
2023 SCImago Journal Rankings: 0.845
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, B.-
dc.contributor.authorBrambles, O. J.-
dc.contributor.authorLotko, W.-
dc.contributor.authorOuellette, J. E.-
dc.contributor.authorLyon, J. G.-
dc.date.accessioned2018-02-01T01:54:44Z-
dc.date.available2018-02-01T01:54:44Z-
dc.date.issued2016-
dc.identifier.citationJournal of Geophysical Research A: Space Physics, 2016, v. 121, n. 2, p. 1425-1435-
dc.identifier.issn2169-9380-
dc.identifier.urihttp://hdl.handle.net/10722/251145-
dc.description.abstract©2015. American Geophysical Union. All Rights Reserved. Earthward propagating plasmoids in the Earth's magnetotail have been observed by satellites. Using a multifluid global magnetosphere simulation, earthward propagating plasmoids are reproduced when ionospheric O + outflow is included in the global simulation. Controlled simulations show that without ionospheric outflow, the plasmoids generated in the magnetotail during a substorm-steady magnetospheric convection cycle only propagate tailward. With ionospheric outflow, earthward plasmoids can be induced through the modification of magnetotail reconnection at multiple X lines. When multiple X lines form in the magnetotail, plasmoids may be trapped between multiple reconnection sites. When magnetic reconnection rate is reduced at the near-Earth X line by the presence of ionospheric O + , the earthward exhaust flow of reconnection occurring at the midtail X line forces the plasmoid to propagate earthward. The propagation speed and spatial size of the simulated earthward plasmoid are consistent with observations from the Cluster satellites.-
dc.languageeng-
dc.relation.ispartofJournal of Geophysical Research A: Space Physics-
dc.subjectglobal simulations-
dc.subjectmagnetic reconnection-
dc.subjectplasmoids-
dc.subjectmagnetotail-
dc.subjectionospheric outflow-
dc.titleThe role of ionospheric O<sup>+</sup> outflow in the generation of earthward propagating plasmoids-
dc.typeArticle-
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1002/2015JA021667-
dc.identifier.scopuseid_2-s2.0-84959290669-
dc.identifier.volume121-
dc.identifier.issue2-
dc.identifier.spage1425-
dc.identifier.epage1435-
dc.identifier.eissn2169-9402-
dc.identifier.isiWOS:000373002100036-
dc.identifier.issnl2169-9380-

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