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dc.contributor.authorOzaki, M.en
dc.contributor.authorShiokawa, K.en
dc.contributor.authorMiyoshi, Y.en
dc.contributor.authorKataoka, R.en
dc.contributor.authorConnors, M.en
dc.contributor.authorInoue, T.en
dc.contributor.authorYagitani, S.en
dc.contributor.authorEbihara, Y.en
dc.contributor.authorJun, C.-W.en
dc.contributor.authorNomura, R.en
dc.contributor.authorSakaguchi, K.en
dc.contributor.authorOtsuka, Y.en
dc.contributor.authorUchida, H. A.en
dc.contributor.authorSchofield, I.en
dc.contributor.authorDanskin, D. W.en
dc.contributor.alternative海老原, 祐輔ja
dc.date.accessioned2018-04-10T03:01:24Z-
dc.date.available2018-04-10T03:01:24Z-
dc.date.issued2018-02-26-
dc.identifier.issn0094-8276-
dc.identifier.urihttp://hdl.handle.net/2433/230487-
dc.description.abstractIsolated proton aurora (IPA) is a manifestation of the wave‐particle interaction visible at subauroral latitudes, with activity on many timescales. We herein present the first observational evidence of rapid luminous modulation of IPA correlated with simultaneously observed Pc1 waves observed on the ground, which are equivalent to the electromagnetic ion cyclotron (EMIC) waves in the magnetosphere. The fastest luminous modulation of IPA was observed in the 1 Hz frequency range, which was twice the frequency of the related Pc1 waves. The time lag between variations of Pc1 wave power and the IPA luminosity suggests that the source regions of IPA are distributed near the magnetic equator, suggesting an EMIC wave‐energetic (a few tens of keV) proton or relativistic (MeV or sub‐MeV) electron interaction. The generation mechanism of this 1 Hz luminous modulation remains an open issue, but this study supports the importance of nonlinear pitch angle scattering via wave‐particle interactions.en
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Geophysical Union (AGU)en
dc.rights©2018. The Authors. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.en
dc.subjectisolated proton auroraen
dc.subjectPc1 geomagnetic pulsationsen
dc.subjectwave‐particle interactionen
dc.titleDiscovery of 1 Hz Range Modulation of Isolated Proton Aurora at Subauroral Latitudesen
dc.typejournal article-
dc.type.niitypeJournal Article-
dc.identifier.jtitleGeophysical Research Lettersen
dc.identifier.volume45-
dc.identifier.issue3-
dc.identifier.spage1209-
dc.identifier.epage1217-
dc.relation.doi10.1002/2017GL076486-
dc.textversionpublisher-
dc.addressGraduate School of Natural Science and Technology, Kanazawa Universityen
dc.addressInstitute for Space‐Earth Environmental Research, Nagoya Universityen
dc.addressInstitute for Space‐Earth Environmental Research, Nagoya Universityen
dc.addressNational Institute of Polar Researchen
dc.addressCenter for Science, Athabasca Universityen
dc.addressGraduate School of Natural Science and Technology, Kanazawa Universityen
dc.addressGraduate School of Natural Science and Technology, Kanazawa Universityen
dc.addressResearch Institute for Sustainable Humanosphere, Kyoto Universityen
dc.addressDepartment of Atmospheric and Oceanic Sciences, University of Californiaen
dc.addressJapan Aerospace Exploration Agencyen
dc.addressNational Institute of Information and Communications Technologyen
dc.addressInstitute for Space‐Earth Environmental Research, Nagoya Universityen
dc.addressDepartment of Polar Science, Graduate University for Advanced Studies (SOKENDAI)en
dc.addressCenter for Science, Athabasca Universityen
dc.addressNatural Resources Canadaen
dcterms.accessRightsopen access-
datacite.awardNumber15H05747-
datacite.awardNumber15H05815-
datacite.awardNumber16H06286-
datacite.awardNumber17K06456-
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName.alternativeJapan Society for the Promotion of Science (JSPS)en
jpcoar.funderName.alternativeJapan Society for the Promotion of Science (JSPS)en
jpcoar.funderName.alternativeJapan Society for the Promotion of Science (JSPS)en
jpcoar.funderName.alternativeJapan Society for the Promotion of Science (JSPS)en
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