Integration and early testing of WEAVE: the next-generation spectroscopy facility for the William Herschel Telescope

Gavin Dalton, Scott Trager, Don Carlos Abrams, Piercarlo Bonifacio, J. Alfonso L. Aguerri, Antonella Vallenari, Georgia Bishop, Kevin Middleton, Chris Benn, Kevin Dee, Shan Mignot, Ian Lewis, Johannes Pragt, Sergio Pico, Nicholas Walton, Juerg Rey, Carlos Allende Prieto, Emilie Lhomé, Marc Balcells, David TerrettMatthew Brock, Andy Ridings, Jure Skvarč, Marc Verheijen, Iain Steele, Remko Stuik, Gabby Kroes, Neils Tromp, Jan Kragt, Dirk Lesman, Chris Mottram, Stuart Bates, Frank Gribbin, Jose Alonso Burgal, José Miguel Herreros, José Miguel Delgado, Carlos Martin, Diego Cano, Ramon Navarro, Mike Irwin, Luis Peralta de Arriba, Neil O'Mahoney, Andrea Bianco, Alireza Moleinezhad, Rik ter Horst, Emilio Molinari, Marcello Lodi, José Guerra, Andrea Baruffalo, Esperanza Carrasco, Szigfrid Farcas, Ellen Schallig, Sarah Hughes, Vanessa Hill, Dan Smith, Janet Drew, Bianca Poggianti, Angela Iovino, Mat Pieri, Shoko Jin, Lillian Dominguez Palmero, Cecilia Fariña, Adrian Martín, Clare Worley, David Murphy, Steve Guest, Huw Morris, Eddy Elswijk, Menno de Haan, Hiddo Hanenburg, Bernardo Salasnich, Divakara Mayya, Rafael Izazaga-Pérez, Emanuel Gafton, Elisabetta Caffau, David Horville, Francisco Paz Chinchón, Jesus Falcon-Barosso, Boris Gänsicke, Jose San Juan, Nauzet Hernandez

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Abstract

We present an update on the overall integration progress of the WEAVE next-generation spectroscopy facility for the William Herschel Telescope (WHT), now scheduled for first light in early-2021, with almost all components now arrived at the observatory. We also present a summary of the current planning behind the 5-year initial phase of survey operations, and some detailed end-to-end science simulations that have been implemented to evaluate the final on-sky performance after data processing. WEAVE will provide optical ground-based follow up of 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 mini integral field units, or a single large IFU for each observation. The fibres are fed to a single (dual-beam) spectrograph, with total of 16k spectral pixels, 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.
Original languageEnglish
Article number1144714
JournalProceedings of the SPIE
Volume1447
DOIs
Publication statusPublished - 17-Dec-2020

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