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Proceedings Paper

ULTIMATE: a deployable multiple integral field unit for Subaru
Author(s): S. C. Ellis; Ross Zhelem; David Brown; Nicholas F. Staszak; Chris Lidman; David M. Nataf; Andrew R. Casey; Pascal Xavier; Andrew Sheinis; Peter Gillingham; Julia Tims; Jon Lawrence; Julia Bryant; Rob Sharp
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Paper Abstract

ULTIMATE is an instrument concept under development at the AAO, for the Subaru Telescope, which will have the unique combination of ground layer adaptive optics feeding multiple deployable integral field units. This will allow ULTIMATE to probe unexplored parameter space, enabling science cases such as the evolution of galaxies at z ~ 0:5 to 1.5, and the dark matter content of the inner part of our Galaxy. ULTIMATE will use Starbugs to position between 7 and 13 IFUs over a 14 × 8 arcmin field-of-view, pro- vided by a new wide-field corrector. All Starbugs can be positioned simultaneously, to an accuracy of better than 5 milli-arcsec within the typical slew-time of the telescope, allowing for very efficient re-configuration between observations. The IFUs will feed either the near-infrared nuMOIRCS or the visible/ near-infrared PFS spectrographs, or both. Future possible upgrades include the possibility of purpose built spectrographs and incorporating OH suppression using fibre Bragg gratings. We describe the science case and resulting design requirements, the baseline instrument concept, and the expected performance of the instrument.

Paper Details

Date Published: 9 August 2016
PDF: 19 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99081Q (9 August 2016); doi: 10.1117/12.2232107
Show Author Affiliations
S. C. Ellis, Australian Astronomical Observatory (Australia)
Ross Zhelem, Australian Astronomical Observatory (Australia)
David Brown, Australian Astronomical Observatory (Australia)
Nicholas F. Staszak, Australian Astronomical Observatory (Australia)
Chris Lidman, Australian Astronomical Observatory (Australia)
David M. Nataf, The Australian National Univ. (Australia)
Andrew R. Casey, The Australian National Univ. (Australia)
Pascal Xavier, Australian Astronomical Observatory (Australia)
Andrew Sheinis, Australian Astronomical Observatory (Australia)
Peter Gillingham, Australian Astronomical Observatory (Australia)
Julia Tims, Australian Astronomical Observatory (Australia)
Jon Lawrence, Australian Astronomical Observatory (Australia)
Julia Bryant, Australian Astronomical Observatory (Australia)
The Univ. of Sydney (Australia)
CAASTRO (Australia)
Rob Sharp, The Australian National Univ. (Australia)

Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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