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Article: Ionospheric control of magnetotail reconnection

TitleIonospheric control of magnetotail reconnection
Authors
Issue Date2014
Citation
Science, 2014, v. 345, n. 6193, p. 184-187 How to Cite?
AbstractObserved distributions of high-speed plasma flows at distances of 10 to 30 Earth radii (R E ) in Earth's magnetotail neutral sheet are highly skewed toward the premidnight sector. The flows are a product of the magnetic reconnection process that converts magnetic energy stored in the magnetotail into plasma kinetic and thermal energy. We show, using global numerical simulations, that the electrodynamic interaction between Earth's magnetosphere and ionosphere produces an asymmetry consistent with observed distributions in nightside reconnection and plasmasheet flows and in accompanying ionospheric convection. The primary causal agent is the meridional gradient in the ionospheric Hall conductance which, through the Cowling effect, regulates the distribution of electrical currents flowing within and between the ionosphere and magnetotail.
Persistent Identifierhttp://hdl.handle.net/10722/251076
ISSN
2023 Impact Factor: 44.7
2023 SCImago Journal Rankings: 11.902
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLotko, William-
dc.contributor.authorSmith, Ryan H.-
dc.contributor.authorZhang, Binzheng-
dc.contributor.authorOuellette, Jeremy E.-
dc.contributor.authorBrambles, Oliver J.-
dc.contributor.authorLyon, John G.-
dc.date.accessioned2018-02-01T01:54:30Z-
dc.date.available2018-02-01T01:54:30Z-
dc.date.issued2014-
dc.identifier.citationScience, 2014, v. 345, n. 6193, p. 184-187-
dc.identifier.issn0036-8075-
dc.identifier.urihttp://hdl.handle.net/10722/251076-
dc.description.abstractObserved distributions of high-speed plasma flows at distances of 10 to 30 Earth radii (R E ) in Earth's magnetotail neutral sheet are highly skewed toward the premidnight sector. The flows are a product of the magnetic reconnection process that converts magnetic energy stored in the magnetotail into plasma kinetic and thermal energy. We show, using global numerical simulations, that the electrodynamic interaction between Earth's magnetosphere and ionosphere produces an asymmetry consistent with observed distributions in nightside reconnection and plasmasheet flows and in accompanying ionospheric convection. The primary causal agent is the meridional gradient in the ionospheric Hall conductance which, through the Cowling effect, regulates the distribution of electrical currents flowing within and between the ionosphere and magnetotail.-
dc.languageeng-
dc.relation.ispartofScience-
dc.titleIonospheric control of magnetotail reconnection-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1126/science.1252907-
dc.identifier.scopuseid_2-s2.0-84904122918-
dc.identifier.volume345-
dc.identifier.issue6193-
dc.identifier.spage184-
dc.identifier.epage187-
dc.identifier.eissn1095-9203-
dc.identifier.isiWOS:000339409900045-
dc.identifier.issnl0036-8075-

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