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ICARUS: in-situ studies of the solar corona beyond Parker Solar Probe and Solar Orbiter

Krucker, Säm; Sorriso-Valvo, Luca; Bruno, Roberto +51 more

The primary scientific goal of ICARUS (Investigation of Coronal AcceleRation and heating of solar wind Up to the Sun), a mother-daughter satellite mission, proposed in response to the ESA "Voyage 2050" Call, will be to determine how the magnetic field and plasma dynamics in the outer solar atmosphere give rise to the corona, the solar wind, and th…

Optical design of the multi-wavelength imaging coronagraph Metis for the solar orbiter mission

Heinzel, P.; Solanki, S. K.; Romoli, M. +31 more

This paper describes the innovative optical design of the Metis coronagraph for the Solar Orbiter ESA-NASA mission. Metis is a multi-wavelength, externally occulted telescope for the imaging of the solar corona in both the visible and ultraviolet wavelength ranges. Metis adopts a novel occultation scheme for the solar disk, that we named "inverse …