COCHISE: the first light of the Italian millimetre telescope at Concordia (Dome C, Antarctica)

Details COCHISE: the first light of the Italian millimetre telescope at Concordia (Dome C, Antarctica) COCHISE: the first light of the Italian millimetre telescope at Concordia (Dome C, Antarctica)

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011exa....31..199s&link_type=abstract

Experimental Astronomy, Volume 31, Issue 2-3, pp. 199-214

Astronomy and Astrophysics

Astronomy

Astronomical Observatories, Infrared Telescopes, Antarctic Regions, Calibrating, Infrared Astronomy, Reflecting Telescopes, Submillimeter Waves

Scientific paper

COCHISE (Cosmological Observations at Concordia with High-sensitivity Instrument for Source Extraction) is a 2.6 m telescope located on the high Antarctic Plateau near the Italian-French Concordia Base. The telescope is mainly devoted to Cosmological observations, able to operate between 200 μm and 3 mm of wavelength. In this paper we describe the main characteristics of the instrument. We also report on the first light, obtained during summer 2010-2011: this result marks the beginning of millimetre astrophysical observations at Concordia. Responsivity, noise equivalent temperature and field of view of the instrument are reported. At present COCHISE is the largest telescope located at Concordia. Beside the scientific expectations, the use of this kind of instrument in the Antarctic environment poses technological aspects of relevant interest: thus COCHISE can be considered as a pathfinder for future Antarctic telescopes.

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