Academic Journal
Relating Streamer Flows to Density and Magnetic Structures at the Parker Solar Probe
| العنوان: | Relating Streamer Flows to Density and Magnetic Structures at the Parker Solar Probe |
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| المؤلفون: | Rouillard, Alexis, Kouloumvakos, Athanasios, Vourlidas, Angelos, Kasper, Justin, Bale, Stuart, Raouafi, Nour-Edine, Lavraud, Benoit, Howard, Russell, Stenborg, Guillermo, Stevens, Michael, H., Davies, Jackie, Hess, Phillip, Higginson, Aleida, Lavarra, Michael, Viall, Nicholeen, Korreck, Kelly, E, Pinto, Rui, Griton, Léa, Réville, Victor, Louarn, Philippe, Wu, Yihong, Dalmasse, Kévin, Génot, Vincent, Case, Anthony, Whittlesey, Phyllis, L, Larson, Davin, Halekas, Jasper, S., Livi, Roberto, Goetz, Keith, Harvey, Peter, Macdowall, Robert, Malaspina, D., Pulupa, M., Bonnell, J., Dudok de Wit, Thierry, Penou, Emmanuel, Poirier, Nicolas, Aurélien, Corentin |
| المساهمون: | Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS), Johns Hopkins University Applied Physics Laboratory Laurel, MD (APL), University of Michigan Ann Arbor, University of Michigan System, Space Sciences Laboratory Berkeley (SSL), University of California Berkeley (UC Berkeley), University of California (UC)-University of California (UC), Naval Research Laboratory (NRL), Smithsonian Astrophysical Observatory, Smithsonian Institution, Département d'Astrophysique (ex SAP) (DAP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), National Laboratory of Pattern Recognition Beijing (NLPR), Institute of Automation - Chinese Academy of Sciences, University of California (UC), Department of Physics and Astronomy Iowa City, University of Iowa Iowa City, The Crouch Oak Family Practice, NASA Goddard Space Flight Center (GSFC), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES), ANR-18-ERC1-0006,SLOW_SOURCE,Trouver l'origine du vent solaire lent(2018), ANR-17-CE31-0006,COROSHOCK,EVALUER LE ROLE DU CHOC COMME ACCELERATEUR DE PARTICULES SOLAIRES(2017), European Project: 606692,EC:FP7:SPA,FP7-SPACE-2013-1,HELCATS(2014) |
| المصدر: | ISSN: 0067-0049. |
| بيانات النشر: | HAL CCSD American Astronomical Society |
| سنة النشر: | 2020 |
| المجموعة: | Aix-Marseille Université: HAL |
| مصطلحات موضوعية: | Unified Astronomy Thesaurus concepts: Slow solar wind (1873), Solar coronal streamers (1486), Solar coronal transients (312), [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] |
| الوصف: | International audience ; The physical mechanisms that produce the slow solar wind are still highly debated. Parker Solar Probe's (PSP's) second solar encounter provided a new opportunity to relate in situ measurements of the nascent slow solar wind with white-light images of streamer flows. We exploit data taken by the Solar and Heliospheric Observatory, the Solar TErrestrial RElations Observatory (STEREO), and the Wide Imager on Solar Probe to reveal for the first time a close link between imaged streamer flows and the high-density plasma measured by the Solar Wind Electrons Alphas and Protons (SWEAP) experiment. We identify different types of slow winds measured by PSP that we relate to the spacecraft's magnetic connectivity (or not) to streamer flows. SWEAP measured high-density and highly variable plasma when PSP was well connected to streamers but more tenuous wind with much weaker density variations when it exited streamer flows. STEREO imaging of the release and propagation of small transients from the Sun to PSP reveals that the spacecraft was continually impacted by the southern edge of streamer transients. The impact of specific density structures is marked by a higher occurrence of magnetic field reversals measured by the FIELDS magnetometers. Magnetic reversals are associated with much stronger density variations inside than outside streamer flows. We tentatively interpret these findings in terms of magnetic reconnection between open magnetic fields and coronal loops with different properties, providing support for the formation of a subset of the slow wind by magnetic reconnection. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | info:eu-repo/grantAgreement/EC/FP7/606692/EU/Heliospheric Cataloguing, Analysis and Techniques Service/HELCATS |
| DOI: | 10.3847/1538-4365/ab579a |
| الاتاحة: | https://hal.science/hal-02886381 https://hal.science/hal-02886381v1/document https://hal.science/hal-02886381v1/file/Rouillard_2020_ApJS_246_37.pdf https://doi.org/10.3847/1538-4365/ab579a |
| Rights: | http://creativecommons.org/licenses/by-nc/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.DDDDDB7C |
| قاعدة البيانات: | BASE |
| DOI: | 10.3847/1538-4365/ab579a |
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