9 July 1998 Gemini multiobject spectrographs
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As the only two optical instruments appearing in its first fleet of instrumentation, the GEMINI MultiObject Spectrograph (GMOS) are indeed being developed as workhorse instruments. One GMOS will be located at each of the GEMINI telescopes to perform: (1) exquisite direct imaging, (2) 5.5 arcminute longslit spectroscopy, (3) up to 600 object multislit spectroscopy, and (4) about 2000 element integral field spectroscopy. The GMOSs are the only GEMINI instrumentation duplicated at both telescopes. The UK and Canadian GMOS team successfully completed their critical design review in February 1997. They are now well into the fabrication phase, and will soon approach integration of the first instrument. The first GMOS is scheduled to be delivered to Mauna Kea in the fall of '99 and the second to Cerro Pachon one year later. In this paper, we will look at how a few of the more interesting details of the final GMOS design help meet its demanding scientific requirements. These include its transmissive optical design and mask handling mechanisms. We will also discuss our plans for the mask handling process in GEMINI's queue scheduled environment, from the taking of direct images through to the use of masks on the telescope. Finally, we present the status of fabrication and integration work to date.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard G. Murowinski, Richard G. Murowinski, Tim Bond, Tim Bond, David Crampton, David Crampton, Timothy J. Davidge, Timothy J. Davidge, J. Murray Fletcher, J. Murray Fletcher, Brian Leckie, Brian Leckie, Christopher L. Morbey, Christopher L. Morbey, Scott C. Roberts, Scott C. Roberts, Leslie K. Saddlemyer, Leslie K. Saddlemyer, Jerry Sebesta, Jerry Sebesta, James R. Stilburn, James R. Stilburn, Kei Szeto, Kei Szeto, Jeremy R. Allington-Smith, Jeremy R. Allington-Smith, Robert Content, Robert Content, Roger Llewelyn Davies, Roger Llewelyn Davies, George N. Dodsworth, George N. Dodsworth, Roger Haynes, Roger Haynes, David J. Robinson, David J. Robinson, David J. Robertson, David J. Robertson, John Webster, John Webster, David Lee, David Lee, Steven M. Beard, Steven M. Beard, Colin G. Dickson, Colin G. Dickson, Dennis Kelly, Dennis Kelly, R. Bennet, R. Bennet, Maureen A. Ellis, Maureen A. Ellis, Peter R. Hastings, Peter R. Hastings, Phil R. Williams, Phil R. Williams, } "Gemini multiobject spectrographs", Proc. SPIE 3355, Optical Astronomical Instrumentation, (9 July 1998); doi: 10.1117/12.316838; https://doi.org/10.1117/12.316838

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