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Proceedings Paper

VIRUS: production of a massively replicated 33k fiber integral field spectrograph for the upgraded Hobby-Eberly Telescope
Author(s): Gary J. Hill; Sarah E. Tuttle; Hanshin Lee; Brian L. Vattiat; Mark E. Cornell; D. L. DePoy; Niv Drory; Maximilian H. Fabricius; Andreas Kelz; J. L. Marshall; J. D. Murphy; Travis Prochaska; Richard D. Allen; Ralf Bender; Guillermo Blanc; Taylor Chonis; Gavin Dalton; Karl Gebhardt; John Good; Dionne Haynes; Thomas Jahn; Phillip J. MacQueen; M. D. Rafal; M. M. Roth; R. D. Savage; Jan Snigula
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Paper Abstract

The Visible Integral-field Replicable Unit Spectrograph (VIRUS) consists of a baseline build of 150 identical spectrographs (arrayed as 75 units, each with a pair of spectrographs) fed by 33,600 fibers, each 1.5 arcsec diameter, deployed over the 22 arcminute field of the upgraded 10 m Hobby-Eberly Telescope (HET). The goal is to deploy 82 units. VIRUS has a fixed bandpass of 350-550 nm and resolving power R~700. VIRUS is the first example of industrial-scale replication applied to optical astronomy and is capable of spectral surveys of large areas of sky. This approach, in which a relatively simple, inexpensive, unit spectrograph is copied in large numbers, offers significant savings of engineering effort, cost, and schedule when compared to traditional instruments. The main motivator for VIRUS is to map the evolution of dark energy for the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) using 0.8M Lyman-α emitting galaxies as tracers. The full VIRUS array is due to be deployed by early 2014 and will provide a powerful new facility instrument for the HET, well suited to the survey niche of the telescope. VIRUS and HET will open up wide-field surveys of the emission-line universe for the first time. We present the production design and current status of VIRUS.

Paper Details

Date Published: 24 September 2012
PDF: 20 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84460N (24 September 2012); doi: 10.1117/12.925434
Show Author Affiliations
Gary J. Hill, McDonald Observatory, The Univ. of Texas at Austin (United States)
Sarah E. Tuttle, McDonald Observatory, The Univ. of Texas at Austin (United States)
Hanshin Lee, McDonald Observatory, The Univ. of Texas at Austin (United States)
Brian L. Vattiat, McDonald Observatory, The Univ. of Texas at Austin (United States)
Mark E. Cornell, McDonald Observatory, The Univ. of Texas at Austin (United States)
D. L. DePoy, Texas A&M Univ. (United States)
Niv Drory, Univ. Nacional Autónoma de México (Mexico)
Maximilian H. Fabricius, Max-Planck-Institut für extraterrestrische Physik (Germany)
Andreas Kelz, Leibniz-Institut für Astrophysik Potsdam (Germany)
innoFSPEC Potsdam (Germany)
J. L. Marshall, Texas A&M Univ. (United States)
J. D. Murphy, The Univ. of Texas at Austin (United States)
Travis Prochaska, Texas A&M Univ. (United States)
Richard D. Allen, Texas A&M Univ. (United States)
Ralf Bender, Max-Planck-Institut für extraterrestrische Physik (Germany)
Univ.-Sternwarte München
Guillermo Blanc, Carnegie Observatories (United States)
Taylor Chonis, The Univ. of Texas at Austin (United States)
Gavin Dalton, Oxford Univ. (United Kingdom)
Karl Gebhardt, The Univ. of Texas at Austin (United States)
John Good, McDonald Observatory, The Univ. of Texas at Austin (United States)
Dionne Haynes, Leibniz-Institut für Astrophysik Potsdam (Germany)
innoFSPEC Potsdam (Germany)
Thomas Jahn, Leibniz-Institut für Astrophysik Potsdam (Germany)
Phillip J. MacQueen, McDonald Observatory, The Univ. of Texas at Austin (United States)
M. D. Rafal, McDonald Observatory, The Univ. of Texas at Austin (United States)
M. M. Roth, Leibniz-Institut für Astrophysik Potsdam (Germany)
innoFSPEC Potsdam (Germany)
R. D. Savage, McDonald Observatory, The Univ. of Texas at Austin (United States)
Jan Snigula, Max-Planck-Institut für extraterrestrische Physik (Germany)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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