Observations of auroral broadband emissions by CLUSTER -: art. no. 1563

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dc.authoridVaivads, Andris/0000-0003-1654-841X
dc.authoridParrot, Michel/0000-0003-0905-5721
dc.authoridTjulin, Anders/0000-0003-3810-2937
dc.authoridCarozzi, Tobia/0000-0002-4963-179X
dc.authoridEriksson, Anders/0000-0003-2926-6761
dc.authoridBuchert, Stephan/0000-0003-2158-6074
dc.contributor.authorWahlund, JE
dc.contributor.authorYilmaz, A
dc.contributor.authorBackrud, M
dc.contributor.authorSundkvist, D
dc.contributor.authorVaivads, A
dc.contributor.authorWinningham, D
dc.contributor.authorAndré, M
dc.date.accessioned2025-01-27T20:41:11Z
dc.date.available2025-01-27T20:41:11Z
dc.date.issued2003
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstract[1] We present the results of a study based on several events of broadband ULF/ELF emissions observed in the auroral region by the CLUSTER multi-spacecraft at distances around 4-5 R-E. These emissions, observed below the ion plasma frequency, are similar to the broadband emissions observed at lower altitudes (800-4000 km) by rockets (e.g. AMICIST) and satellites (e.g. FREJA and FAST). As successive passages of the four CLUSTER satellites through nearly the same regions show, the intensity of the emissions depend on the thermal properties of the plasma and gradients thereof. The total Poynting flux is downward and is comparable to energy fluxes observed at lower altitudes. We believe the broadband emissions are the result of dispersed Alfven waves (DAW), which propagates down the magnetic field lines, and emits higher frequency ion plasma wave modes.
dc.identifier.doi10.1029/2002GL016335
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.issue11
dc.identifier.scopus2-s2.0-0041409828
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1029/2002GL016335
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24057
dc.identifier.volume30
dc.identifier.wosWOS:000183554000002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmer Geophysical Union
dc.relation.ispartofGeophysical Research Letters
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectKinetic Alfven Waves
dc.subjectEnergization
dc.subjectTurbulence
dc.subjectEvolution
dc.subjectRegion
dc.titleObservations of auroral broadband emissions by CLUSTER -: art. no. 1563
dc.typeArticle

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