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Proceedings Paper

Fibre positioning concept for the WEAVE spectrograph at the WHT
Author(s): Ian J. Lewis; Gavin B. Dalton; Matthew Brock; James Gilbert; Don Carlos Abrams; J. Alfonso L. Aguerri; Piercarlo Bonifacio; Kevin Middleton; Scott C. Trager
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Paper Abstract

WEAVE is the next-generation wide-field optical spectroscopy facility for the William Herschel Telescope (WHT) in La Palma, Canary Islands, Spain. It is a multi-object "pick and place" fibre fed spectrograph with more than one thousand fibres behind a new dedicated 2° prime focus corrector, This is similar in concept to the Australian Astronomical Observatory's 2dF instrument1 with two observing plates, one of which is observing the sky while other is being reconfigured by a robotic fibre positioner. It will be capable of acquiring more than 10000 star or galaxy spectra a night. The WEAVE positioner concept uses two robots working in tandem in order to reconfigure a fully populated field within the expected 1 hour dwell-time for the instrument (a good match between the required exposure times and the limit of validity for a given configuration due to the effects of differential refraction).

Paper Details

Date Published: 8 July 2014
PDF: 11 pages
Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 914734 (8 July 2014); doi: 10.1117/12.2055883
Show Author Affiliations
Ian J. Lewis, Univ. of Oxford (United Kingdom)
Gavin B. Dalton, Univ. of Oxford (United Kingdom)
Rutherford Appleton Lab. (United Kingdom)
Matthew Brock, Univ. of Oxford (United Kingdom)
James Gilbert, Univ. of Oxford (United Kingdom)
Don Carlos Abrams, Isaac Newton Group of Telescopes (Spain)
J. Alfonso L. Aguerri, Instituto de Astrofísica de Canarias (Spain)
Piercarlo Bonifacio, GEPI, Observatoire de Paris (France)
Kevin Middleton, Rutherford Appleton Lab. (United Kingdom)
Scott C. Trager, Univ. of Groningen (Netherlands)

Published in SPIE Proceedings Vol. 9147:
Ground-based and Airborne Instrumentation for Astronomy V
Suzanne K. Ramsay; Ian S. McLean; Hideki Takami, Editor(s)

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