Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pasj...60..849m&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.60, No.4, pp.849--856
Astronomy and Astrophysics
Astronomy
1
Scientific paper
We developed Korea Astronomy and Space science Institute (KASI) Near Infrared Camera System (KASINICS) to be installed on the 1.8m telescope of Bohyunsan Optical Astronomy Observatory (BOAO) in Korea. We use a 512×512 InSb array (Aladdin III Quadrant, Raytheon Co.) to enable L band observations as well as J, H, and KS bands. The field-of-view of the array is 3.3'× 3.3' with a resolution of 0.39''/ pixel. We adopt an Offner relay optical system, which provides a cold stop to eliminate thermal background emission from the telescope structures. Most parts of the camera, including the mirrors, were manufactured from the same ingot of aluminum alloy to ensure a homologous contraction from room temperature to 80K. We also developed a readout electronics system for the array detector. Based on preliminary results from test observations, the limiting magnitudes are J = 17.6, H = 17.5, KS = 16.1, and L(narrow) = 10.0mag at a signal-to-noise ratio of 10 for an integration time of 100s.
Cha Sang-Mok
Cho Seoung-hyun
Han Jeong-Yeol
Han Wonyong
Jin -Ho
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