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30 September 2004 IRIS2: a working infrared multi-object spectrograph and camera
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Abstract
IRIS2 is a near-infrared imager and spectrograph based on a HAWAII1 HgCdTe detector. It provides wide-field (7.7’×7.7’) imaging capabilities at 0.4486”/pixel sampling, long-slit spectroscopy at λ/Δλ≈2400 in each of the J, H and K passbands, and the ability to do multi-object spectroscopy in up to three masks. These multi-slit masks are laser cut, and have been manufactured for both traditional multiple slit work (≈20-40 objects in a 3’×7.4’ field-of-view), multiple slit work in narrow-band filters (≈100 objects in a 5’×7.4’ field-of-view), and micro-hole spectroscopy in narrow-band filters allowing the observation of ≈200 objects in a 5’×7.4’ field.
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Chris G. Tinney, Stuart D. Ryder, Simon C. Ellis, Vladimir Churilov, John Dawson, Greg A. Smith, Lew Waller, John D. Whittard, Roger Haynes, Allan Lankshear, John R. Barton, C. J. Evans, Keith Shortridge, Tony Farrell, and Jeremy Bailey "IRIS2: a working infrared multi-object spectrograph and camera", Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); https://doi.org/10.1117/12.550980
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