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Proceedings Paper

MOSAIC: the ELT multi-object spectrograph
Author(s): P. Jagourel; E. Fitzsimons; F. Hammer; F. De Frondat; M. Puech; C. J. Evans; R. Sanchez; I. Guinouard; F. Chemla; M. Frotin; Y. Yang; P. Parr-Burman; T. Morris; M. Dubbeldam; M. Close; K. Middleton; G. Rousset; É. Gendron; A. Kelz; A. Janssen; J. Pragt; R. Navarro; M. Larrieu; K. El Hadi; K. Dohlen; G. Dalton; I. Lewis; M. Rodrigues; S. Morris; L. Kaper; B. Barbuy; J-G. Cuby; Olivier Le Fèvre
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Paper Abstract

Following a successful Phase A study, we introduce the delivered conceptual design of the MOSAIC1 multi-object spectrograph for the ESO Extremely Large Telescope (ELT). MOSAIC will provide R~5000 spectroscopy over the full 460-1800 nm range, with three additional high-resolution bands (R~15000) targeting features of particular interest. MOSAIC will combine three operational modes, enabling integrated-light observations of up to 200 sources on the sky (high-multiplex mode) or spectroscopy of 10 spatially-extended fields via deployable integral-field units: MOAO6 assisted high-definition (HDM) and Visible IFUs (VIFU). We will summarise key features of the sub-systems of the design, e.g. the smart tiled focal-plane for target selection and the multi-object adaptive optics used to correct for atmospheric turbulence, and present the next steps toward the construction phase.

Paper Details

Date Published: 11 July 2018
PDF: 10 pages
Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 10702A4 (11 July 2018); doi: 10.1117/12.2314135
Show Author Affiliations
P. Jagourel, Observatoire de Paris à Meudon (France)
E. Fitzsimons, UK Astronomy Technology Ctr. (United Kingdom)
F. Hammer, Observatoire de Paris à Meudon (France)
F. De Frondat, Observatoire de Paris à Meudon (France)
M. Puech, Observatoire de Paris à Meudon (France)
C. J. Evans, UK Astronomy Technology Ctr. (United Kingdom)
R. Sanchez, UK Astronomy Technology Ctr. (United Kingdom)
I. Guinouard, Observatoire de Paris à Meudon (France)
F. Chemla, Observatoire de Paris à Meudon (France)
M. Frotin, Observatoire de Paris à Meudon (France)
Y. Yang, Observatoire de Paris à Meudon (France)
P. Parr-Burman, UK Astronomy Technology Ctr. (United Kingdom)
T. Morris, Durham Univ. (United Kingdom)
M. Dubbeldam, Durham Univ. (United Kingdom)
M. Close, Durham Univ. (United Kingdom)
K. Middleton, STFC Rutherford Appleton Lab. (United Kingdom)
G. Rousset, LESIA, Observatoire de Paris, Univ. PSL, Sorbonne Univ., Univ. Paris Diderot, CNRS (France)
É. Gendron, LESIA, Observatoire de Paris, Univ. PSL, Sorbonne Univ., Univ. Paris Diderot, CNRS (France)
A. Kelz, Leibniz-Institut für Astrophysik Potsdam (Germany)
A. Janssen, NOVA Optical Infrared Instrumentation Group (Netherlands)
J. Pragt, NOVA Optical Infrared Instrumentation Group (Netherlands)
R. Navarro, NOVA Optical Infrared Instrumentation Group (Netherlands)
M. Larrieu, Institut de Recherche en Astrophysique et Planétologie (France)
K. El Hadi, Aix Marseille Univ., LAM, CNRS (France)
K. Dohlen, Aix Marseille Univ., LAM, CNRS (France)
G. Dalton, Univ. of Oxford (United Kingdom)
I. Lewis, Univ. of Oxford (United Kingdom)
M. Rodrigues, Observatoire de Paris à Meudon (France)
S. Morris, Durham Univ. (United Kingdom)
L. Kaper, Univ. van Amsterdam (Netherlands)
B. Barbuy, Univ. de São Paulo (Brazil)
J-G. Cuby, Aix Marseille Univ., LAM, CNRS (France)
Olivier Le Fèvre, Aix Marseille Univ., LAM, CNRS (France)


Published in SPIE Proceedings Vol. 10702:
Ground-based and Airborne Instrumentation for Astronomy VII
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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