Stuart D. Ryder , Yin-Sheng Sun , Michael C. B. Ashley , Michael G. Burton , Lori E. Allen , John W. V. Storey, PASA, 15 (2), 228
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UNSWIRF: A Tunable Imaging Spectrometer for the Near-Infrared
Stuart D. Ryder 
Yin-Sheng Sun 
Michael C. B. Ashley
Michael G. Burton
Lori E. Allen
John W. V. Storey
School of Physics, University of New South Wales, Sydney 2052, Australia.
sun, mcba, mgb, lea, jwvs@newt.phys.unsw.edu.au
Current address: Joint Astronomy Centre, 660 N. A'Ohoku Place, Hilo HI 96720, U.S.A.
sryder@jach.hawaii.edu
Abstract:
We describe the specifications, characteristics, calibration, and analysis of data from the University of New South Wales Infrared Fabry-Perot (UNSWIRF) etalon. UNSWIRF is a near-infrared tunable imaging spectrometer, used primarily in conjunction with IRIS on the AAT, but suitable for use as a visitor instrument at other telescopes. The etalon delivers a resolving power in excess of 4000 (corresponding to a velocity resolution 
km 
), and allows imaging of fields up to 100'' in diameter on the AAT at any wavelength between 1.5 and 2.4 
m for which suitable blocking filters are available.
Keywords: instrumentation: miscellaneous - methods: data analysis
infrared: ISM: lines
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