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Proceedings Paper

Developments in fiber-positioning technology for the WEAVE instrument at the William Herschel Telescope
Author(s): Ellen Schallig; Ian J. Lewis; James Gilbert; Gavin Dalton; Matthew Brock; Don Carlos Abrams; Kevin Middleton; J. Alfonso L. Aguerri; Piercarlo Bonifacio; Esperanza Carrasco ; Scott C. Trager; Antonella Vallenari
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Paper Abstract

WEAVE is the next-generation wide-field optical spectroscopy facility for the William Herschel Telescope (WHT) on La Palma in the Canary Islands, Spain. It is a multi-object "pick-and-place" fibre-fed spectrograph with a 1000 fibre multiplex behind a new dedicated 2° prime focus corrector. 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). In this paper we describe some of the final design decisions arising from the prototyping phase of the instrument design and provide an update on the current manufacturing status of the fibre positioner system.

Paper Details

Date Published: 9 August 2016
PDF: 11 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99087U (9 August 2016); doi: 10.1117/12.2231626
Show Author Affiliations
Ellen Schallig, Univ. of Oxford (United Kingdom)
Ian J. Lewis, Univ. of Oxford (United Kingdom)
James Gilbert, Univ. of Oxford (United Kingdom)
Mt. Stromlo Observatory (Australia)
Gavin Dalton, Univ. of Oxford (United Kingdom)
STFC Rutherford Appleton Lab. (United Kingdom)
Matthew Brock, Univ. of Oxford (United Kingdom)
Don Carlos Abrams, Isaac Newton Group of Telescopes (Spain)
Kevin Middleton, STFC Rutherford Appleton Lab. (United Kingdom)
J. Alfonso L. Aguerri, Instituto de Astrofísica de Canarias (Spain)
Piercarlo Bonifacio, GEPI, Observatoire de Paris, PSL Research Univ., CNRS, Univ. Paris Diderot (France)
Esperanza Carrasco , Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
Scott C. Trager, Kapteyn Astronomical Institute (Netherlands)
Antonella Vallenari, INAF - Osservatorio Astronomico di Padova (Italy)

Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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