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Proceedings Paper

Gemini multiobject spectrographs
Author(s): Richard G. Murowinski; Tim Bond; David Crampton; Timothy J. Davidge; J. Murray Fletcher; Brian Leckie; Christopher L. Morbey; Scott C. Roberts; Leslie K. Saddlemyer; Jerry Sebesta; James R. Stilburn; Kei Szeto; Jeremy R. Allington-Smith; Robert Content; Roger Llewelyn Davies; George N. Dodsworth; Roger Haynes; David J. Robinson; David J. Robertson; John Webster; David Lee; Steven M. Beard; Colin G. Dickson; Dennis Kelly; R. Bennet; Maureen A. Ellis; Peter R. Hastings; Phil R. Williams
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Paper Abstract

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.

Paper Details

Date Published: 9 July 1998
PDF: 8 pages
Proc. SPIE 3355, Optical Astronomical Instrumentation, (9 July 1998); doi: 10.1117/12.316838
Show Author Affiliations
Richard G. Murowinski, Dominion Astrophysical Observatory (Canada)
Tim Bond, Dominion Astrophysical Observatory (United States)
David Crampton, Dominion Astrophysical Observatory (Canada)
Timothy J. Davidge, Dominion Astrophysical Observatory (Canada)
J. Murray Fletcher, Herzberg Institute of Astrophysics (Canada)
Brian Leckie, Dominion Astrophysical Observatory (Canada)
Christopher L. Morbey, Dominion Astrophysical Observatory (Canada)
Scott C. Roberts, Dominion Astrophysical Observatory (Canada)
Leslie K. Saddlemyer, Dominion Astrophysical Observatory (Canada)
Jerry Sebesta, Dominion Astrophysical Observatory (Canada)
James R. Stilburn, Dominion Astrophysical Observatory (Canada)
Kei Szeto, Dominion Astrophysical Observatory (Canada)
Jeremy R. Allington-Smith, Univ. of Durham (United Kingdom)
Robert Content, Univ. of Durham (United Kingdom)
Roger Llewelyn Davies, Univ. of Durham (United Kingdom)
George N. Dodsworth, Univ. of Durham (United Kingdom)
Roger Haynes, Univ. of Durham (Australia)
David J. Robinson, Univ. of Durham (United Kingdom)
David J. Robertson, Univ. of Durham (United Kingdom)
John Webster, Univ. of Durham (United Kingdom)
David Lee, Univ. of Durham (United States)
Steven M. Beard, Royal Observatory Edinburgh (United Kingdom)
Colin G. Dickson, Royal Observatory Edinburgh (United Kingdom)
Dennis Kelly, Royal Observatory Edinburgh (United Kingdom)
R. Bennet, Royal Observatory Edinburgh (United Kingdom)
Maureen A. Ellis, Royal Observatory Edinburgh (United Kingdom)
Peter R. Hastings, Royal Observatory Edinburgh (United Kingdom)
Phil R. Williams, Royal Observatory Edinburgh (United Kingdom)

Published in SPIE Proceedings Vol. 3355:
Optical Astronomical Instrumentation
Sandro D'Odorico, Editor(s)

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