Speaker
Description
In October 2022, during the Solar Orbiter's perihelion passage, the Metis coronagraph captured an exceptionally large coronal mass ejection (CME). This observation was part of a dedicated program that provided high temporal (20 s cadence) and spatial resolution (4400 km per pixel) images, with a field of view extending from 1.7 to 3 solar radii, at a distance of 0.3 AU from the Sun.
The observation revealed fine-scale structures of the eruption with unprecedented resolution. Amongst the detected features, quasi-periodic coronal wave fronts were clearly identified, which are interpreted as fast-mode magnetosonic waves or CME-driven field-line oscillations.
In this study, we present a comprehensive analysis of the event, providing significant findings on its kinematics, temporal evolution and outflow velocities within the expanding solar corona. Additionally, we integrate observations from other space-based coronagraphs and disk imagers in order to track the CME from its initiation in the low corona to its expansion up to higher layers of the solar atmosphere.
