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Proceedings Paper

Imaging polarimetry with the METIS coronagraph of the Solar Orbiter mission
Author(s): Giuseppe Crescenzio; Silvano Fineschi; Gerardo Capobianco; Gianalfredo Nicolini; Giuseppe Massone; Marco A. Malvezzi; Federico Landini; Marco Romoli; Ester Antonucci
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Paper Abstract

METIS, the "Multi Element Telescope for Imaging and Spectroscopy", is a coronagraph of the Solar Orbiter mission to be launched in 2017. The METIS coronagraph includes three optical paths for i) broad-band imaging of the full corona in polarized visible-light (590-650 nm); ii) narrow-band coronal imaging in the UV HI Ly α (121.6 nm) and extreme-UV He II Ly α (30.4 nm), and iii) spectroscopic observations of the HI and He II Ly α. This presentation describes the optical design of the METIS visible-light path for imaging polarimetry of the K-corona. The achromatic polarimeter's requirements on polarization sensitivity, achromatic response and instrumental polarization control are described. The expected performances of the visible-light path are also presented.

Paper Details

Date Published: 17 September 2012
PDF: 10 pages
Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84433J (17 September 2012); doi: 10.1117/12.927432
Show Author Affiliations
Giuseppe Crescenzio, INAF, Osservatorio Astronomico di Torino (Italy)
Silvano Fineschi, INAF, Osservatorio Astronomico di Torino (Italy)
Gerardo Capobianco, INAF, Osservatorio Astronomico di Torino (Italy)
Gianalfredo Nicolini, INAF, Osservatorio Astronomico di Torino (Italy)
Giuseppe Massone, INAF, Osservatorio Astronomico di Torino (Italy)
Marco A. Malvezzi, Univ. degli Studi di Pavia (Italy)
Federico Landini, Univ. degli Studi di Firenze (Italy)
Marco Romoli, Univ. degli Studi di Firenze (Italy)
Ester Antonucci, INAF, Osservatorio Astronomico di Torino (Italy)


Published in SPIE Proceedings Vol. 8443:
Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Stephen S. Murray; Jan-Willem A. den Herder, Editor(s)

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