In:
Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Vol. 60, No. 4 ( 2008-08-25), p. 849-856
Abstract:
We developed Korea Astronomy and Space science Institute (KASI) Near Infrared Camera System (KASINICS) to be installed on the 1.8 m telescope of Bohyunsan Optical Astronomy Observatory (BOAO) in Korea. We use a 512$\times$512 InSb array (Aladdin III Quadrant, Raytheon Co.) to enable $L$ band observations as well as $J, H$, and $K_s$ bands. The field-of-view of the array is 3${\rlap{\hskip.75pt{^\prime}}\hskip.75pt.\hskip1pt}$3$\times$3${\rlap{\hskip.75pt{^\prime}}\hskip.75pt.\hskip1pt}$3 with a resolution of 0${\rlap{\hskip.75pt{^{\prime\prime}}}\hskip.75pt.\hskip1.75pt}$39$/$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 80 K. 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, $K_s =$ 16.1, and $L$(narrow) $=$ 10.0 mag at a signal-to-noise ratio of 10 for an integration time of 100 s.
Type of Medium:
Online Resource
ISSN:
0004-6264
,
2053-051X
DOI:
10.1093/pasj/60.4.849
Language:
English
Publisher:
Oxford University Press (OUP)
Publication Date:
2008
detail.hit.zdb_id:
2206640-8
detail.hit.zdb_id:
2083084-1
SSG:
16,12
