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The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation

Jin, Shoko; Trager, Scott C.; Dalton, Gavin B.; Aguerri, J. Alfonso L.; Drew, J. E.; Falcón-Barroso, Jesús; Gänsicke, Boris T.; Hill, Vanessa; Iovino, Angela; Pieri, Matthew M.; Poggianti, Bianca M.; Smith, D. J. B.; Vallenari, Antonella; Abrams, Don Carlos; Aguado, David S.; Antoja, Teresa; Aragón-Salamanca, Alfonso; Kuchner, Ulrike


Shoko Jin

Scott C. Trager

Gavin B. Dalton

J. Alfonso L. Aguerri

J. E. Drew

Jesús Falcón-Barroso

Boris T. Gänsicke

Vanessa Hill

Angela Iovino

Matthew M. Pieri

Bianca M. Poggianti

D. J. B. Smith

Antonella Vallenari

Don Carlos Abrams

David S. Aguado

Teresa Antoja


WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for the William Herschel Telescope, will see first light in late 2022. WEAVE comprises a new 2-degree field-of-view prime-focus corrector system, a nearly 1000-multiplex fibre positioner, 20 individually deployable 'mini' integral field units (IFUs), and a single large IFU. These fibre systems feed a dual-beam spectrograph covering the wavelength range 366−959\,nm at R∼5000, or two shorter ranges at R∼20000. After summarising the design and implementation of WEAVE and its data systems, we present the organisation, science drivers and design of a five- to seven-year programme of eight individual surveys to: (i) study our Galaxy's origins by completing Gaia's phase-space information, providing metallicities to its limiting magnitude for ∼3 million stars and detailed abundances for ∼1.5 million brighter field and open-cluster stars; (ii) survey ∼0.4 million Galactic-plane OBA stars, young stellar objects and nearby gas to understand the evolution of young stars and their environments; (iii) perform an extensive spectral survey of white dwarfs; (iv) survey ∼400 neutral-hydrogen-selected galaxies with the IFUs; (v) study properties and kinematics of stellar populations and ionised gas in z<0.5 cluster galaxies; (vi) survey stellar populations and kinematics in ∼25000 field galaxies at 0.3≲z≲0.7; (vii) study the cosmic evolution of accretion and star formation using >1 million spectra of LOFAR-selected radio sources; (viii) trace structures using intergalactic/circumgalactic gas at z>2. Finally, we describe the WEAVE Operational Rehearsals using the WEAVE Simulator.


Jin, S., Trager, S. C., Dalton, G. B., Aguerri, J. A. L., Drew, J. E., Falcón-Barroso, J., …Kuchner, U. (2023). The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation. Monthly Notices of the Royal Astronomical Society,

Journal Article Type Article
Acceptance Date Dec 4, 2022
Online Publication Date Mar 11, 2023
Publication Date Mar 11, 2023
Deposit Date Dec 9, 2022
Publicly Available Date Dec 9, 2022
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Keywords surveys – instrumentation: spectrographs – Galaxy: general – stars: general – galaxies: general – cosmology: observations
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