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Proceedings Paper

Gemini-North multi-object spectrograph: integral field unit
Author(s): Graham J. Murray; Jeremy R. Allington-Smith; Robert Content; Roger Llewelyn Davies; George N. Dodsworth; Bryan Miller; Inger Jorgensen; Isobel Hook; David Crampton; Richard G. Murowinski
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Paper Abstract

The Gemini-North Multiobject Spectrograph (GMOS) includes a powerful capability for integral field spectroscopy - the first to be installed and used on an 8-10m telescope. GMOS is switched to this mode by the remote insertion of an integral field unit (IFU) into the focal plane in place of the masks used for multiobject spectroscopy. With 1500 lenslet-coupled fibres, it provides a total field of view exceeding 50 square arcseconds, including a separate field dedicated to background subtraction. We describe the design, construction and testing of the IFU and present performance results obtained during commissioning.

Paper Details

Date Published: 7 March 2003
PDF: 10 pages
Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.461009
Show Author Affiliations
Graham J. Murray, Univ. of Durham (United Kingdom)
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)
Bryan Miller, Gemini Observatory (United States)
Inger Jorgensen, Gemini Observatory (United States)
Isobel Hook, Univ. of Oxford (United Kingdom)
David Crampton, NRC-Herzberg Institute of Astrophysics (Canada)
Richard G. Murowinski, NRC-Herzberg Institute of Astrophysics (Canada)

Published in SPIE Proceedings Vol. 4841:
Instrument Design and Performance for Optical/Infrared Ground-based Telescopes
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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