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Coronal mass ejection followed by a prominence eruption and a plasma blob as observed by Solar Orbiter
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SYSNO ASEP 0561048 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Coronal mass ejection followed by a prominence eruption and a plasma blob as observed by Solar Orbiter Author(s) Bemporad, A. (IT)
Andretta, V. (IT)
Susino, R. (IT)
Heinzel, Petr (ASU-R) RID, ORCIDNumber of authors 29 Article number A7 Source Title Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 665, September (2022)Number of pages 15 s. Publication form Online - E Language eng - English Country FR - France Keywords Sun ; atmosphere ; UV radiation Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics OECD category Astronomy (including astrophysics,space science) Method of publishing Open access with time embargo (01.10.2023) Institutional support ASU-R - RVO:67985815 UT WOS 000849631100001 EID SCOPUS 85141238334 DOI 10.1051/0004-6361/202243162 Annotation We show how data acquired by the Full Sun Imager (FSI), the Metis coronagraph, and the Heliospheric Imager (HI) from the Solar Orbiter perspective can be combined to study the eruptions and different source regions. Moreover, we show how Metis data can be analyzed to provide new information about solar eruptions. Different 3D reconstruction methods were applied to the data acquired by different spacecraft, including remote-sensing instruments on board Solar Orbiter. Images acquired by the two Metis channels in the visible light (VL) and H I Ly-alpha line (UV) were combined to derive physical information about the expanding plasma. The polarization ratio technique was also applied for the first time to Metis images acquired in the VL channel. The two eruptions were followed in 3D from their source region to their expansion in the intermediate corona. By combining VL and UV Metis data, the formation of a post-CME current sheet (CS) was followed for the first time in the intermediate corona. The plasma temperature gradient across a post-CME blob propagating along the CS was also measured for the first time. Application of the polarization ratio technique to Metis data shows that by combining four different polarization measurements, the errors are reduced by similar to 5 7%. This constrains the 3D plasma distribution better. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2023 Electronic address https://doi.org/10.1051/0004-6361/202243162
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