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Project overview and update on WEAVE: the next generation wide-field spectroscopy facility for the William Herschel Telescope

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arxiv 1412.0843 v1 pith:7K4KA5VM submitted 2014-12-02 astro-ph.IM

Project overview and update on WEAVE: the next generation wide-field spectroscopy facility for the William Herschel Telescope

Gavin Dalton , Scott Trager , Don Carlos Abrams , Piercarlo Bonifacio , J. Alfonso L. Aguerri , Kevin Middleton , Chris Benn , Kevin Dee
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Frederic Sayede Ian Lewis Johannes Pragt Sergio Pico Nic Walton Juerg Rey Carlos Allende Prieto Jose Penate Emilie Lhome Tibor Agocs Jose Alonso David Terrett Matthew Brock James Gilbert Andy Ridings Isabelle Guinouard Marc Verheijen Ian Tosh Kevin Rogers Iain Steele Remko Stuik Neils Tromp Attila Jasko Jan Kragt Dirk Lesman Chris Mottram Stuart Bates Frank Gribbin Luis Fernando Rodriguez Jose Miguel Delgado Carlos Martin Diego Cano Ramon Navarro Mike Irwin Jim Lewis Eduardo Gonzales Solares Neil O Mahony Andrea Bianco Christina Zurita Rik ter Horst Emilio Molinari Marcello Lodi Jose Guerra Antonella Vallenari Andrea Baruffolo
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classification astro-ph.IM
keywords telescopeweavefacilitysinglefibresfieldground-basedherschel
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We present an overview of and status report on the WEAVE next-generation spectroscopy facility for the William Herschel Telescope (WHT). WEAVE principally targets optical ground-based follow up of upcoming ground-based (LOFAR) and space-based (Gaia) surveys. WEAVE is a multi-object and multi-IFU facility utilizing a new 2-degree prime focus field of view at the WHT, with a buffered pick-and-place positioner system hosting 1000 multi-object (MOS) fibres, 20 integral field units, or a single large IFU for each observation. The fibres are fed to a single spectrograph, with a pair of 8k(spectral) x 6k (spatial) pixel cameras, located within the WHT GHRIL enclosure on the telescope Nasmyth platform, supporting observations at R~5000 over the full 370-1000nm wavelength range in a single exposure, or a high resolution mode with limited coverage in each arm at R~20000. The project is now in the final design and early procurement phase, with commissioning at the telescope expected in 2017.

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