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Astrophysics > Instrumentation and Methods for Astrophysics

arXiv:2405.19198 (astro-ph)
[Submitted on 29 May 2024]

Title:WST -- Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy

Authors:David Lee, Joel D. R. Vernet, Roland Bacon, Alexandre Jeanneau, Ernesto Oliva, Anna Brucalassi, Andrea Tozzi, José A. Araiza-Durán, Andrea Bianco, Jan Kragt, Ramon Navarro, Bianca Garilli, Kjetil Dohlen, Jean-Paul Kneib, Ricardo Araujo, Maxime Rombach, Eloy Hernandez, Roelof S. de Jong, Andreas Kelz, Stephen Watson, Tom Louth, Ian Bryson, Elizabeth George, Norbert Hubin, Julia Bryant, Jon Lawrence
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Abstract:WST - Widefield Spectroscopic Telescope: We summarise the design challenges of instrumentation for a proposed 12m class Telescope that aims to provide a large (>2.5 square degree) field of view and enable simultaneous Multi-object (> 20,000 objects) and Integral Field spectroscopy (inner 3x3 arcminutes field of view), initially at visible wavelengths. For the MOS mode, instrumentation includes the fiber positioning units, fiber runs and the high (R~40,000) and low (R~3,000 - 4,000) resolution spectrographs. For the MUSE like Integral Field Spectrograph, this includes the relay from the Telescope Focal Plane, the multi-stage splitting and slicing and almost 150 identical spectrographs. We highlight the challenge of mass production at a credible cost and the issues of maintenance and sustainable operation.
Comments: 9 pages, 9 figures
Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM)
Cite as: arXiv:2405.19198 [astro-ph.IM]
  (or arXiv:2405.19198v1 [astro-ph.IM] for this version)
  https://doi.org/10.48550/arXiv.2405.19198

Submission history

From: David Lee [view email]
[v1] Wed, 29 May 2024 15:37:55 UTC (809 KB)
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