Magnetospheric Multiscale Dayside Reconnection Electron Diffusion Region Events

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dc.citation.firstpage4858en_US
dc.citation.journalTitleJournal of Geophysical Research: Space Physicsen_US
dc.citation.lastpage4878en_US
dc.citation.volumeNumber123en_US
dc.contributor.authorWebster, J.M.en_US
dc.contributor.authorBurch, J.L.en_US
dc.contributor.authorReiff, P.H.en_US
dc.contributor.authorDaou, A.G.en_US
dc.contributor.authorGenestreti, K.J.en_US
dc.contributor.authorGraham, D.B.en_US
dc.contributor.authorTorbert, R.B.en_US
dc.contributor.authorErgun, R.E.en_US
dc.contributor.authorSazykin, S.Y.en_US
dc.contributor.authorMarshall, A.en_US
dc.contributor.authorAllen, R.C.en_US
dc.contributor.authorChen, L.-J.en_US
dc.contributor.authorWang, S.en_US
dc.contributor.authorPhan, T.D.en_US
dc.contributor.authorGiles, B.L.en_US
dc.contributor.authorMoore, T.E.en_US
dc.contributor.authorFuselier, S.A.en_US
dc.contributor.authorCozzani, G.en_US
dc.contributor.authorRussell, C.T.en_US
dc.contributor.authorEriksson, S.en_US
dc.contributor.authorRager, A.C.en_US
dc.contributor.authorBroll, J.M.en_US
dc.contributor.authorGoodrich, K.en_US
dc.contributor.authorWilder, F.en_US
dc.date.accessioned2018-11-01T19:40:03Zen_US
dc.date.available2018-11-01T19:40:03Zen_US
dc.date.issued2018en_US
dc.description.abstractWe use high‐resolution data from dayside passes of the Magnetospheric Multiscale (MMS) mission to create for the first time a comprehensive listing of encounters with the electron diffusion region (EDR), as evidenced by electron agyrotropy, ion jet reversals, and j • E′ > 0. We present an overview of these 32 EDR or near‐EDR events, which demonstrate a wide variety of observed plasma behavior inside and surrounding the reconnection site. We analyze in detail three of the 21 new EDR encounters, which occurred within a 1‐min‐long interval on 23 November 2016. The three events, which resulted from a relatively low and oscillating magnetopause velocity, exhibited large electric fields (up to ~100 mV/m), crescent‐shaped electron velocity phase space densities, large currents (≥2 μA/m2), and Ohmic heating of the plasma (~10 nW/m3). We include an Ohm's law analysis, in which we show that the divergence of the electron pressure term usually dominates the nonideal terms and is much more turbulent on the magnetosphere versus the magnetosheath side of the EDR.en_US
dc.identifier.citationWebster, J.M., Burch, J.L., Reiff, P.H., et al.. "Magnetospheric Multiscale Dayside Reconnection Electron Diffusion Region Events." <i>Journal of Geophysical Research: Space Physics,</i> 123, (2018) Wiley: 4858-4878. https://doi.org/10.1029/2018JA025245.en_US
dc.identifier.doihttps://doi.org/10.1029/2018JA025245en_US
dc.identifier.urihttps://hdl.handle.net/1911/103280en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsThis 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_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.titleMagnetospheric Multiscale Dayside Reconnection Electron Diffusion Region Eventsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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