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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: 9 September 2019
PDF: 10 pages
Proc. SPIE 10565, International Conference on Space Optics — ICSO 2010, 105656H (9 September 2019); doi: 10.1117/12.2553106
Show Author Affiliations
E. Antonucci, Istituto Nazionale di Astrofisica (Italy)
V. Andretta, Istituto Nazionale di Astrofisica (Italy)
S. Cesare, Thales Alenia Space (Italy)
A. Ciaravella, Istituto Nazionale di Astrofisica (Italy)
G. Doschek, U.S. Naval Research Lab. (United States)
S. Fineschi, Istituto Nazionale di Astrofisica (Italy)
S. Giordano, Istituto Nazionale di Astrofisica (Italy)
P. Lamy, Lab. d'Astrophysique de Marseille (France)
D. Moses, U.S. Naval Research Lab. (United States)
G. Naletto, Univ. degli Studi di Padova (Italy)
J. Newmark, U.S. Naval Research Lab. (United States)
L. Poletto, CNR-Istituto di Fotonica e Nanotecnologie (Italy)
M. Romoli, Univ. degli Studi di Firenze (Italy)
S. Solanki, Max-Planck-Institut für Sonnensystemforschung (Germany)
D. Spadaro, Istituto Nazionale di Astrofisica (Italy)
L. Teriaca, Max-Planck-Institut für Sonnensystemforschung (Germany)
L. Zangrilli, Istituto Nazionale di Astrofisica (Italy)

Published in SPIE Proceedings Vol. 10565:
International Conference on Space Optics — ICSO 2010
Errico Armandillo; Bruno Cugny; Nikos Karafolas, Editor(s)

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