Journal
JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY
Volume 43, Issue 3, Pages 75-93Publisher
KOREAN ASTRONOMICAL SOCIETY
DOI: 10.5303/JKAS.2010.43.3.075
Keywords
instrumentation: ccd camera
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Funding
- Korea government(MEST) [2009-0063616]
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We present the characteristics of the Seoul National University 4k Camera (SNUCAM) and report its performance on the 1.5m telescope at the Maidanak observatory in Uzbekistan. SNUCAM is a CCD camera with a pixel scale of 0.266 '' in 4096 x 4096 format, covering 18.1'x 18.1' field of view on the 1.5m. The camera is currently equipped with Bessell UBVRJ, H alpha, SDSS ugriz, and Y-band filters, allowing us to carry out a variety of scientific programs ranging from exoplanet studies to survey of quasars at high redshift. We examine properties of SNUCAM such as the bias level and its temporal variation, the dark current, the readout noise, the gain, the linearity, the fringe patterns; the amplifier bias, and the bad pixels. From our observations, we also constructed the master fringe frames in I-, z-, and Y-band. We outline some of the current scientific programs being carried out with SNUCAM, and demonstrate that SNUCAM on the 1.5m can deliver excellent images that reach to the 5-sigma detection limits of R similar to 25.5 mag and z similar to 22.7 mag in 1 hour total integration.
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