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Proceedings Paper • Open Access

METIS, the Multi Element Telescope for Imaging and Spectroscopy: an instrument proposed for the solar orbiter mission
Author(s): E. Antonucci; V. Andretta; S. Cesare; A. Ciaravella; G. Doschek; S. Fineschi; S. Giordano; P. Lamy; D. Moses; G. Naletto; J. Newmark; L. Poletto; M. Romoli; S. Solanki; D. Spadaro; L. Teriaca; L. Zangrilli

Paper Abstract

METIS, the Multi Element Telescope for Imaging and Spectroscopy, is an instrument proposed to the European Space Agency to be part of the payload of the Solar Orbiter mission. The instrument design has been conceived for performing extreme ultraviolet (EUV) spectroscopy both on the solar disk and off-limb, and near-Sun coronagraphy and spectroscopy.

The proposed instrument suite consists of three different interconnected elements, COR, EUS and SOCS, sharing the same optical bench, electronics, and S/C heat shield aperture. COR is a visible-EUV multiband coronagraph based on a classical externally occulted design. EUS is the component of the METIS EUV disk spectrometer which includes the telescope and all the related mechanisms. Finally, SOCS is the METIS spectroscopic component including the dispersive system and the detectors. The capability of inserting a small telescope collecting coronal light has been added to perform also EUV coronal spectroscopy.

METIS can simultaneously image the visible and ultraviolet emission of the solar corona and diagnose, with unprecedented temporal coverage and space resolution the structure and dynamics of the full corona in the range from 1.2 to 3.0 (1.6 to 4.1) solar radii (R⊙, measured from Sun centre) at minimum (maximum) perihelion during the nominal mission. It can also perform spectroscopic observations of the solar disk and out to 1.4 R⊙ within the 50-150 nm spectral region, and of the geo-effective coronal region 1.7-2.7 R⊙ within the 30-125 nm spectral band.

Paper Details

Date Published: 21 November 2017
PDF: 10 pages
Proc. SPIE 10566, International Conference on Space Optics — ICSO 2008, 105660L (21 November 2017); doi: 10.1117/12.2308225
Show Author Affiliations
E. Antonucci, INAF - Osservatorio Astrofisico di Torino (Italy)
V. Andretta, INAF - Osservatorio Astronomico di Capodimonte (Italy)
S. Cesare, Thales Alenia Space (Italy)
A. Ciaravella, INAF - Osservatorio Astronomico di Palermo (Italy)
G. Doschek, U.S. Naval Research Lab. (United States)
S. Fineschi, INAF - Osservatorio Astrofisico di Torino (Italy)
S. Giordano, INAF - Osservatorio Astronomico di Torino (Italy)
P. Lamy, Lab. d'Astrophysique de Marseille (France)
D. Moses, U.S. Naval Research Lab. (United States)
G. Naletto, Univ. of Padova (Italy)
CNR-INFM-LUXOR (Italy)
J. Newmark, U.S. Naval Research Lab. (United States)
L. Poletto, CNR-INFM-LUXOR (Italy)
M. Romoli, Univ. degli Studi di Firenze (Italy)
S. Solanki, Max-Planck-Institut für Sonnensystemforschung (Germany)
D. Spadaro, INAF - Osservatorio Astrofisico di Catania (Italy)
L. Teriaca, Max-Planck-Institut für Sonnensystemforschung (Germany)
L. Zangrilli, INAF - Osservatorio Astronomico di Torino (Italy)


Published in SPIE Proceedings Vol. 10566:
International Conference on Space Optics — ICSO 2008
Josiane Costeraste; Errico Armandillo; Nikos Karafolas, Editor(s)

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