Coronal mass ejection followed by a prominence eruption and a plasma blob as observed by Solar Orbiter

0561048 - ASÚ 2023 RIV FR eng J - Článek v odborném periodiku
Bemporad, A. - Andretta, V. - Susino, R. - Heinzel, Petr … celkem 29 autorů
Coronal mass ejection followed by a prominence eruption and a plasma blob as observed by Solar Orbiter.
Astronomy & Astrophysics. Roč. 665, September (2022), č. článku A7. ISSN 0004-6361. E-ISSN 1432-0746
Institucionální podpora: RVO:67985815
Klíčová slova: Sun * atmosphere * UV radiation
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 6.5, rok: 2022
Způsob publikování: Open access s časovým embargem
https://doi.org/10.1051/0004-6361/202243162

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.
Trvalý link: https://hdl.handle.net/11104/0334243