Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/8015
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dc.contributor.authorPablos, D. de-
dc.contributor.authorSamanta, T-
dc.contributor.authorBadman, S. T-
dc.contributor.authorSchwanitz, C-
dc.contributor.authorHarra, L. K-
dc.contributor.authorPetrie, G-
dc.contributor.authorMac Cormack, C-
dc.contributor.authorMandrini, C. H-
dc.contributor.authorRaouafi, N. E-
dc.contributor.authorMartinez Pillet, V-
dc.contributor.authorVelli, M-
dc.date.accessioned2022-08-23T06:00:22Z-
dc.date.available2022-08-23T06:00:22Z-
dc.date.issued2022-07-
dc.identifier.citationSolar Physics, Vol. 297, No. 7, 90en_US
dc.identifier.issn1573-093X-
dc.identifier.urihttp://hdl.handle.net/2248/8015-
dc.descriptionRestricted Accessen_US
dc.descriptionThe original publication is available at springerlink.com-
dc.description.abstractParker Solar Probe observations show ubiquitous magnetic-field reversals closer to the Sun, often referred to as “switchbacks”. The switchbacks have been observed before in the solar wind near 1 AU and beyond, but their occurrence was historically rare. PSP measurements below ∼ 0.2 AU show that switchbacks are, however, the most prominent structures in the “young” solar wind. In this work, we analyze remote-sensing observations of a small equatorial coronal hole to which PSP was connected during the perihelion of Encounter 1. We investigate whether some of the switchbacks captured during the encounter were of coronal origin by correlating common switchback in situ signatures with remote observations of their expected coronal footpoint. We find strong evidence that timescales present in the corona are relevant to the outflowing, switchback-filled solar wind, as illustrated by strong linear correlation. We also determine that spatial analysis of the observed region is optimal, as the implied average solar-wind speed more closely matches that observed by PSP at the time. We observe that hemispherical structures are strongly correlated with the radial proton velocity and the mass flux in the solar wind. The above findings suggest that a subpopulation of the switchbacks are seeded at the corona and travel into interplanetary space.en_US
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.relation.urihttps://doi.org/10.1007/s11207-022-02022-4-
dc.rights© Springer Nature-
dc.subjectSolar winden_US
dc.subjectCoronal holesen_US
dc.subjectObservationsen_US
dc.titleSearching for a Solar Source of Magnetic-Field Switchbacks in Parker Solar Probe’s First Encounteren_US
dc.typeArticleen_US
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