GMTIFS: The Giant Magellan Telescope integral fields spectrograph and imager
Date
2016
Authors
Sharp, Rob
Bloxham, Gabe
Boz, Robert
Bundy, Dave
Davies, John
Espeland, Brady
Fordham, Bartholomew
Hart, John
Herrald, Nicholas
Nielsen, Jon
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SPIE - The International Society for Optical Engineering
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 & 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 skycoverage 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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Proceedings of SPIE - The International Society for Optical Engineering
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Conference paper
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Open Access
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