Description
We present unique results of a recent study of bright eruptive prominence embedded in the core of a CME observed by the Metis coronagraph on board the Solar Orbiter on April 25-26, 2021. Metis provides simultaneous imaging in the hydrogen Lyman alpha line and in the VL. Triangulation is used to estimate the de-projected height and velocity of the structure. Based on previous studies of the He-D3 line polarization, we have estimated the intensity of the He-D3 line. These spectral observations are used together with the non-LTE diagnostics to derive physical parameters of this eruptive prominence observed very high in the solar corona.
Primary author
Sonja Jejčič
(University of Ljubljana, FMF)
Co-authors
Petr Heinzel
(Czech Academy of Sciences)
Giuliana Russano
(Istituto Nazionale di Astrofisica (INAF))
Vincenzo Andretta
(Istituto Nazionale di Astrofisica (INAF))
Roberto Susino
(Istituto Nazionale di Astrofisica (INAF))
Jiri Stepan
(Czech Academy of Sciences)
