MOSAIC: the ELT multi-object spectrograph

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

doi:10.1117/12.2314135

11 July 2018 MOSAIC: the ELT multi-object spectrograph

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

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 10702A4 (2018) https://doi.org/10.1117/12.2314135
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

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.

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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, and Olivier Le Fèvre "MOSAIC: the ELT multi-object spectrograph", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 10702A4 (11 July 2018); https://doi.org/10.1117/12.2314135

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