24 September 2012 KOALA: a wide-field 1000 element integral-field unit for the Anglo-Australian Telescope
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KOALA, the Kilofibre Optimised Astronomical Lenslet Array, is a wide-field, high efficiency integral field unit being designed for use with the bench mounted AAOmega spectrograph on the AAT. KOALA will have 1000 fibres in a rectangular array with a selectable field of view of either 1390 or 430 sq. arcseconds with a spatial sampling of 1.25" or 0.7" respectively. To achieve this KOALA will use a telecentric double lenslet array with interchangeable fore-optics. The IFU will feed AAOmega via a 31m fibre run. The efficiency of KOALA is expected to be ≈ 52% at 3700A and ≈ 66% at 6563°Å with a throughput of > 52% over the entire wavelength range.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. C. Ellis, M. Ireland, J. S. Lawrence, J. Tims, N. Staszak, J. Brzeski, Q. A. Parker, R. Sharp, J. Bland-Hawthorn, S. Case, M. Colless, S. Croom, W. Couch, O. De Marco, K. Glazebrook, W. Saunders, R. Webster, D. B. Zucker, "KOALA: a wide-field 1000 element integral-field unit for the Anglo-Australian Telescope", Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84460V (24 September 2012); doi: 10.1117/12.925812; https://doi.org/10.1117/12.925812

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