Imagery with infrared arrays. I - Ground-based system and astronomical performances

Details Imagery with infrared arrays. I - Ground-based system and astronomical performances Imagery with infrared arrays. I - Ground-based system and astronomical performances

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...215..211l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 215, no. 1, May 1989, p. 211-217.

Astronomy and Astrophysics

Astronomy

15

Image Processing, Infrared Astronomy, Semiconductor Devices, Space Observations (From Earth), Arrays, Astronomical Photography, Charge Coupled Devices, Charge Injection Devices, Ground Stations

Scientific paper

This paper analyzes the use of an InSb 32 x 32 array based on CID technology, cooled to 4 K. Extensive laboratory tests demonstrate its performance with respect to linearity, sensitivity, and integration time (which may reach several minutes). An observational procedure is established on several large telescopes to cope with sky-background subtraction and flat-fielding. Similarities and differences with the use of visible CCD cameras are discussed. A common-user camera, installed at the 3.6-m Canada-France-Hawaii Telescope, is described, its performances assessed, and some astronomical results presented.

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