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Connecting Solar Wind Velocity Spikes Measured by Solar Orbiter and Coronal Brightenings Observed by SDO

hal.structure.identifierSchool of Earth and Space Sciences [Beijing]
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorHOU, Chuanpeng
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorROUILLARD, Alexis
hal.structure.identifierSchool of Earth and Space Sciences [Beijing]
dc.contributor.authorHE, Jiansen
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorGANNOUNI, Bahaeddine
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorRÉVILLE, Victor
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorLOUARN, Philippe
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorFEDOROV, Andrey
hal.structure.identifierFaculty of Mathematics and Physics [Charles University of Praha]
dc.contributor.authorPŘECH, Lubomír
hal.structure.identifierMullard Space Science Laboratory [MSSL]
dc.contributor.authorOWEN, Christopher
hal.structure.identifierMullard Space Science Laboratory [MSSL]
dc.contributor.authorVERSCHAREN, Daniel
hal.structure.identifierINAF - Osservatorio Astronomico di Roma [OAR]
dc.contributor.authorD’AMICIS, Raffaella
hal.structure.identifierIstituto per la Scienza e la Tecnologia dei Plasmi [ISTP]
hal.structure.identifierKTH Royal Institute of Technology [Stockholm] [KTH]
dc.contributor.authorSORRISO-VALVO, Luca
hal.structure.identifierImperial College London
dc.contributor.authorFARGETTE, Naïs
hal.structure.identifierMullard Space Science Laboratory [MSSL]
dc.contributor.authorCOBURN, Jesse
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorGÉNOT, Vincent
hal.structure.identifierUniversity of Michigan [Ann Arbor]
dc.contributor.authorRAINES, Jim
hal.structure.identifierINAF - Osservatorio Astronomico di Roma [OAR]
dc.contributor.authorBRUNO, Roberto
hal.structure.identifierSouthwest Research Institute [San Antonio] [SwRI]
dc.contributor.authorLIVI, Stefano
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorLAVRAUD, Benoit
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorANDRÉ, Nicolas
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorFRUIT, Gabriel
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorKIEOKAEW, Rungployphan
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorPLOTNIKOV, Illya
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorPENOU, Emmanuel
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorBARTHE, Alain
hal.structure.identifierSouthwest Research Institute [San Antonio] [SwRI]
dc.contributor.authorKATARIA, Dhiren
hal.structure.identifierLaboratoire de Physique des Plasmas [LPP]
dc.contributor.authorBERTHOMIER, Matthieu
hal.structure.identifierSouthwest Research Institute [San Antonio] [SwRI]
dc.contributor.authorALLEGRINI, Frederic
dc.contributor.authorFORTUNATO, Vito
dc.contributor.authorMELE, Gennaro
hal.structure.identifierImperial College London
dc.contributor.authorHORBURY, Timothy
dc.date.issued2024
dc.identifier.issn2041-8205
dc.description.abstractEnThe Parker Solar Probe's discovery that magnetic switchbacks and velocity spikes in the young solar wind are abundant has prompted intensive research into their origin(s) and formation mechanism(s) in the solar atmosphere. Recent studies, based on in situ measurements and numerical simulations, argue that velocity spikes are produced through interchange magnetic reconnection. Our work studies the relationship between interplanetary velocity spikes and coronal brightenings induced by changes in the photospheric magnetic field. Our analysis focuses on the characteristic periodicities of velocity spikes detected by the Proton Alpha Sensor on the Solar Orbiter during its fifth perihelion pass. Throughout the time period analyzed here, we estimate their origin along the boundary of a coronal hole. Around the boundary region, we identify periodic variations in coronal brightening activity observed by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory. The spectral characteristics of the time series of in situ velocity spikes, remote coronal brightenings, and remote photospheric magnetic flux exhibit correspondence in their periodicities. Therefore, we suggest that the localized small-scale magnetic flux within coronal holes fuels a magnetic reconnection process that can be observed as slight brightness augmentations and outward fluctuations or jets. These dynamic elements may act as mediators, bonding magnetic reconnection with the genesis of velocity spikes and magnetic switchbacks.
dc.language.isoen
dc.publisherBristol : IOP Publishing
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enConnecting Solar Wind Velocity Spikes Measured by Solar Orbiter and Coronal Brightenings Observed by SDO
dc.typeArticle de revue
dc.identifier.doi10.3847/2041-8213/ad4eda
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.description.sponsorshipEuropeERC Slow_Source (DLV-819189)
bordeaux.journalThe Astrophysical journal letters
bordeaux.pageL28
bordeaux.volume968
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-04778500
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04778500v1
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