CISCO: Cooled Infrared Spectrograph and Camera for OHS on the Subaru Telescope
Abstract
This paper describes a Cooled Infrared Spectrograph and Camera for OHS (CISCO), mounted on the Nasmyth focus of the Subaru telescope. It is primarily designed as a back-end camera of the OH-Airglow Suppressor (OHS), and is also used as an independent, general-purpose near-infrared camera/spectrograph. CISCO is based on a single 1024 × 1024 format HgCdTe HAWAII array detector, and is capable of either wide-field imaging of 1'.8 × 1'.8 field-of-view or low-resolution spectroscopy from 0.9 to 2.4 μm. The limiting magnitudes measured during test observations were found to be J=23.5 mag and K' = 22.4 mag (imaging, 1" aperture, S/N = 5, 1hr exposure).
- Publication:
-
Publications of the Astronomical Society of Japan
- Pub Date:
- April 2002
- DOI:
- 10.1093/pasj/54.2.315
- arXiv:
- arXiv:astro-ph/0203320
- Bibcode:
- 2002PASJ...54..315M
- Keywords:
-
- instrumentation: detectors;
- instrumentation: spectrograph;
- infrared: general;
- Astrophysics
- E-Print:
- 14 pages, 15 figures, accepted by PASJ. Figures with higher resolution are available at http://www.ioa.s.u-tokyo.ac.jp/~kmotohara/CISCO/ciscopap.tar.gz