Computer Science – Performance
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21944611p&link_type=abstract
American Astronomical Society, AAS Meeting #219, #446.11
Computer Science
Performance
Scientific paper
We describe the overall characteristics and the performance of an optical CCD camera system, Camera for QUasars in EArly uNiverse (CQUEAN), which is being used at the 2.1m Otto Struve Telescope of the McDonald Observatory since 2010 August. CQUEAN was developed for follow-up imaging observations of near infrared bright sources such as high redshift quasar candidates (z > 4.5), Gamma Ray Bursts, brown dwarfs, and young stellar objects. For efficient observations of the red objects, CQUEAN has a science camera with a deep depletion CCD chip. By employing an auto-guiding system and a focal reducer to enhance the field of view at the classic cassegrain focus, we achieved a stable guiding in 20 minute exposures, an imaging quality with FWHM > 0.6 arcsec over the whole field (4.8 × 4.8 arcmin), and a limiting magnitude of z = 23.4 AB mag at 5-sigma with one hour integration.
Im Myungshin
Pak Soojong
Park Wansoo
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