Construction progress of WEAVE: The next generation wide-field spectroscopy facility for the William Herschel Telescope
2018
We present an update on the overall construction progress of the
WEAVEnext-generation spectroscopy facility for the
William Herschel Telescope(WHT), now that all the major fabrication contracts are in place. 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 effected to evaluate the final on-sky performance after data processing.
WEAVEwill provide optical ground-based follow up of ground-based (
LOFAR) and space-based (Gaia) surveys.
WEAVEis 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 (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. The project has experienced some delays in procurement and now has
first lightexpected for the middle of 2019.
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