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Plasma penetration of the dayside magnetopause

dc.contributor.authorGunell, H.
dc.contributor.authorNilsson, H.
dc.contributor.authorStenberg, G.
dc.contributor.authorHamrin, M.
dc.contributor.authorKarlsson, T.
dc.contributor.authorMaggiolo, R.
dc.contributor.authorAndre, M.
dc.contributor.authorLundin, R.
dc.contributor.authorDandouras, I.
dc.date2012
dc.date.accessioned2016-03-29T10:07:38Z
dc.date.available2016-03-29T10:07:38Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/3050
dc.descriptionData from the Cluster spacecraft during their magnetopause crossing on 25 January 2002 are presented. The magnetopause was in a state of slow non-oscillatory motion during the observational period. Coherent structures of magnetosheath plasma, here typified as plasmoids, were seen on closed magnetic field lines on the inside of the magnetopause. Using simultaneous measurements on two spacecraft, the inward motion of the plasmoids is followed from one spacecraft to the next, and it is found to be in agreement with the measured ion velocity. The plasma characteristics and the direction of motion of the plasmoids show that they have penetrated the magnetopause, and the observations are consistent with the concept of impulsive penetration, as it is known from theory, simulations, and laboratory experiments. The mean flux across the magnetopause observed was 0.2-0.5 of the solar wind flux at the time, and the peak values of the flux inside the plasmoids reached approximately 20 of the solar wind flux.
dc.languageeng
dc.titlePlasma penetration of the dayside magnetopause
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeCluster spacecraft
dc.subject.freeCoherent structure
dc.subject.freeDirection of motion
dc.subject.freeIon velocity
dc.subject.freeLaboratory experiments
dc.subject.freeMagnetic field line
dc.subject.freeMagnetopause crossings
dc.subject.freeMagnetosheath plasma
dc.subject.freePeak values
dc.subject.freePlasma characteristics
dc.subject.freePlasmoids
dc.subject.freeSimultaneous measurement
dc.subject.freePlasmas
dc.subject.freeSolar wind
dc.subject.freeSpacecraft
dc.subject.freeMagnetosphere
dc.source.titlePhysics of Plasmas
dc.source.volume19
dc.source.issue7
dc.source.page72906
Orfeo.peerreviewedYes
dc.identifier.doi10.1063/1.4739446
dc.identifier.scopus2-s2.0-84866943421


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