9 August 2016 Developments in fiber-positioning technology for the WEAVE instrument at the William Herschel Telescope
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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.
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Ellen Schallig, Ellen Schallig, Ian J. Lewis, Ian J. Lewis, James Gilbert, James Gilbert, Gavin Dalton, Gavin Dalton, Matthew Brock, Matthew Brock, Don Carlos Abrams, Don Carlos Abrams, Kevin Middleton, Kevin Middleton, J. Alfonso L. Aguerri, J. Alfonso L. Aguerri, Piercarlo Bonifacio, Piercarlo Bonifacio, Esperanza Carrasco , Esperanza Carrasco , Scott C. Trager, Scott C. Trager, Antonella Vallenari, Antonella Vallenari, } "Developments in fiber-positioning technology for the WEAVE instrument at the William Herschel Telescope", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99087U (9 August 2016); doi: 10.1117/12.2231626; https://doi.org/10.1117/12.2231626
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