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3D-Exploration of the Universe by a wide-field Imaging FTS at high spectral resolution

Published online by Cambridge University Press:  13 November 2008

H. Zinnecker ,
N. Epchtein ,
H. Rauer ,
J.-P. Maillard  and
F. Boulanger
J.-P. Maillard*
Affiliation:
Institut d'Astrophysique de Paris, CNRS et Univ. Pierre et Marie Curie, 98bis Blvd, Arago, 75014 Paris, France
F. Boulanger
Affiliation:
Institut d'Astrophysique Spatiale, CNRS & Université Paris-Sud, Centre Universitaire d'Orsay, Bât. 120, 121, 91405 Orsay, France
*
[email protected][email protected]
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Abstract

In a first part the paper reviews some of the major Spitzer legacy imagingsurveys to show the quantity of data available, and the subsequent need forspectroscopic follow-up surveys on equivalent wide fields. They arerequired for many science cases, as giant star forming regions, youngplanetary nebulea, the Galactic Centre, nearby galaxies, distant galaxyclusters. This capability of wide, integral field spectroscopy, missing inall the existing and planned astronomical facilities, thus, appears amongthe most pertinent choice for the future of astronomy at Dome C. For theinstrumental solution, aflexibility in the choice of spectral resolution and spectral domain on abroad infrared range is desirable to be able to undertake a large variety of study, onextragalactic and galactic fields as well. This capability can be only offered byan Imaging FTS. It fully benefits from the low thermal backgroundemission of Dome C, particularly in the 1.8 to 5.5 μm range, and reachan optimum sensitivity by imaging emission lines. In a difficult site asDome C, a dedicated, medium-size telescope would be the most effective wayof exploiting such an instrument.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 33: 2nd ARENA Conference: The Astrophysical Science Cases at Dome C , 2008 , pp. 123 - 129
Copyright
© EAS, EDP Sciences, 2008

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