9 August 2016 GMTIFS: The Giant Magellan Telescope integral fields spectrograph and imager
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Abstract
GMTIFS is the first-generation adaptive optics integral-field spectrograph for the GMT, having been selected through a competitive review process in 2011. The GMTIFS concept is for a workhorse single-object integral-field spectrograph, operating at intermediate resolution (R~5,000 and 10,000) with a parallel imaging channel. The IFS offers variable spaxel scales to Nyquist sample the diffraction limited GMT PSF from λ ~ 1-2.5 μm as well as a 50 mas scale to provide high sensitivity for low surface brightness objects. The GMTIFS will operate with all AO modes of the GMT (Natural guide star - NGSAO, Laser Tomography – LTAO, and, Ground Layer - GLAO) with an emphasis on achieving high sky coverage for LTAO observations. We summarize the principle science drivers for GMTIFS and the major design concepts that allow these goals to be achieved.
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Rob Sharp, G. Bloxham, R. Boz, D. Bundy, J. Davies, B. Espeland, B. Fordham, J. Hart, N. Herrald, J. Nielsen, A. Vaccarella, C. Vest, P. Young, P. McGregor, "GMTIFS: The Giant Magellan Telescope integral fields spectrograph and imager", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99081Y (9 August 2016); doi: 10.1117/12.2231561; https://doi.org/10.1117/12.2231561
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