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Wide field, integral field spectroscopy at Dome C with an infrared Imaging FTS

Published online by Cambridge University Press:  05 January 2006

M. Giard ,
F. Casoli ,
F. Paletou ,
J. P. Maillard  and
C. Joblin
J. P. Maillard*
Affiliation:
Institut d'Astrophysique de Paris, CNRS et Université P. & M. Curie, 98 bis Bd. Arago, 75014 Paris, France;
C. Joblin
Affiliation:
Centre d'Étude Spatiale des Rayonnements, CNRS et Université Paul Sabatier, 9 Av. du Colonel Roche, 31028 Toulouse Cedex 4, France
*
maillard@iap.fr
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Abstract

In the study of extended sources such as star forming regions, galactic planetary nebulae or comets wide field integral-field spectroscopy at high spectral resolution in the infrared, would be the ideal tool. It is shown that an imaging FTS (IFTS) is the only instrument which can combine a wide field, up to ~10', with a spectral resolution ≥105. At Dome C, in the 2 to 25 μm region, as instrument of a 3-m class telescope, a wide-field IFTS would have no equivalent in space and on ground. It can take full advantage of all the astronomical properties of this site, in particular the lowest thermal background emission conditions on Earth. A program to simulate the expected performances has been developed. At the highest resolution the best sensitivity implies the use of narrow-band filters on the emission lines of interest.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 14: Dome C Astronomy and Astrophysics Meeting , 2005 , pp. 187 - 192
Copyright
© EAS, EDP Sciences, 2005

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