24 September 2012 METIS: the thermal infrared instrument for the E-ELT
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Abstract
The ‘Mid-infrared ELT Imager and Spectrograph’ (METIS) will be the third instrument on the European Extremely Large Telescope (E-ELT). METIS will provide diffraction limited imaging in the atmospheric L/M and N-band from 3 to 14 μm over an 18˝×18˝ field of view, as well as high contrast coronagraphy, medium-resolution (R ≤ 5000) long slit spectroscopy, and polarimetry. In addition, an integral field spectrograph will provide a spectral resolution of R ~ 100,000 at L/M band. Focusing on highest angular resolution and high spectral resolution, METIS will deliver unique science, in particular in the areas of exo-planets, proto-planetary-disks and high-redshift galaxies, which are illustrated in this paper. The reduction of the E-ELT aperture size had little impact on the METIS science case. With the recent positive developments in the area of detectors, the METIS instrument concept has reached a high level of technology readiness. For some key components (cryogenic chopping mirror, immersed grating, sorption cooler and cryogenic derotator) a development and test program has been launched successfully.
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Bernhard R. Brandl, Rainer Lenzen, Eric Pantin, Alistair Glasse, Joris Blommaert, Michael Meyer, Manuel Guedel, Lars Venema, Frank Molster, Remko Stuik, Eva Schmalzl, Jeff Meisner, Emeric Le Floc'h, Wolfgang Brandner, Stefan Hippler, Ignas Snellen, Klaus Pontoppidan, "METIS: the thermal infrared instrument for the E-ELT", Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84461M (24 September 2012); doi: 10.1117/12.926057; https://doi.org/10.1117/12.926057
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