Conference Proceedings
KOALA: A wide-field, 1000 element integral-field unit for the Anglo-Australian Telescope
SC Ellis, M Ireland, JS Lawrence, J Tims, N Staszak, J Brzeski, QA Parker, R Sharp, J Bland-Hawthorn, S Case, M Colless, S Croom, W Couch, O De Marco, K Glazebrook, W Saunders, R Webster, DB Zucker
Proceedings of SPIE the International Society for Optical Engineering | Published : 2012
DOI: 10.1117/12.925812
Abstract
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 6563Å with a throughput of > 52% over the entire wavelength range. © 2012 SPIE.
Grants
Funding Acknowledgements
KOALA is funded by an ARC LIEF grant with further contributions from Macquarie University, The University of Sydney, Swinbune University of Technology, Australian National University, the University of Melbourne and the Australian Astronomical Observatory.