Počet záznamů: 1
Recurrent solar density transients in the slow wind observed with the Metis coronagraph
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SYSNO ASEP 0574439 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Recurrent solar density transients in the slow wind observed with the Metis coronagraph Tvůrce(i) Ventura, R. (IT)
Antonucci, E. (IT)
Downs, C. (US)
Heinzel, Petr (ASU-R) RID, ORCIDCelkový počet autorů 25 Číslo článku A170 Zdroj.dok. Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 675, July (2023)Poč.str. 12 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova Sun ; corona ; solar wind Obor OECD Astronomy (including astrophysics,space science) Způsob publikování Open access Institucionální podpora ASU-R - RVO:67985815 UT WOS 001033667500008 EID SCOPUS 85166950200 DOI 10.1051/0004-6361/202346623 Anotace We aim to investigate and characterize the morphology and dynamics of small-scale coronal plasma density inhomogeneities detected as brighter, denser features propagating outward through the solar corona in the visible-light images of the Metis coronagraph on board Solar Orbiter on February 22, 2021. Our main focus is on investigating their possible origin and contribution to the slow wind variability and dynamics and their dependence on coronal magnetic field configurations and structure. The results suggest that the quasi-periodic enhanced-density plasmoids might be the consequence of reconnection phenomena occurring in the complex web of the separatrix and quasi-separatrix layers present in the solar corona. Moreover, the structural characteristics of some of the detected plasmoids are in favor of the presence of switchbacks that originate during interchange reconnection processes occurring at or below 3 R-& ODOT, in the S-web. The speed of the plasma ejected in the reconnection process is higher than that of the ambient slow solar wind and is likely to be related to the energy involved in the process generating the propagating structures. Pracoviště Astronomický ústav Kontakt Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Rok sběru 2024 Elektronická adresa https://hdl.handle.net/11104/0345572
Počet záznamů: 1