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Proceedings Paper

MIDIR/T-OWL: the thermal/mid-IR instrument for the E-ELT
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Paper Abstract

MIDIR is a combined thermal/mid-infrared imager and spectrograph for the European Extremely Large Telescope (EELT). It will operate in the infrared L, M, N, and Q-band to 20μm with a goal to extend the wavelength coverage to 27μm if the atmospheric properties of the site are sufficiently good. MIDIR will offer imaging and spectroscopic modes over a wide range in spectral resolution. MIDIR will be designed for diffraction limited performance, requiring an optimized, cryogenic adaptive optics (AO) system. The conceptual study of MIDIR is part of a suite of eight ELT instrument "small studies" partly funded by the EU [1]. The study is being performed by an international consortium of Leiden Observatory, Astron, MPIA, UK-ATC, and ESO. The high level instrument requirements for MIDIR have been directly derived from numerous important science cases. In this paper we discuss the science case for MIDIR, provide a summary of the technical specifications, discuss the requirements on the AO system, and estimate the sensitivity in various observing modes. More technical details on the instrument are given in a parallel paper at this conference [2].

Paper Details

Date Published: 29 June 2006
PDF: 14 pages
Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 626920 (29 June 2006); doi: 10.1117/12.670806
Show Author Affiliations
Bernhard Brandl, Leiden Observatory (Netherlands)
Rainer Lenzen, Max-Planck-Institut für Astronomie (Germany)
Lars Venema, ASTRON (Netherlands)
Hans-Ulrich Käufl, European Southern Observatory (Germany)
Gert Finger, European Southern Observatory (Germany)
Alistair Glasse, UK Astronomy Technology Ctr. (United Kingdom)
Wolfgang Brandner, Max-Planck-Institut für Astronomie (Germany)
Remko Stuik, Leiden Observatory (Netherlands)

Published in SPIE Proceedings Vol. 6269:
Ground-based and Airborne Instrumentation for Astronomy
Ian S. McLean; Masanori Iye, Editor(s)

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