MOSAIC: the ELT Multi-Object Spectrograph

MOSAIC: the ELT Multi-Object Spectrograph

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) targ...

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Bibliographic Details
Main Authors: Jagourel, P, Fitzsimons, E, Hammer, F, de Frondat Laadim, F, Puech, M, Evans, CJ, Sanchez-Janssen, R, Guinouard, I, Chemla, F, Frotin, M, Yang, Y, Parr-Burman, P, Morris, T, Dubbeldam, M, Close, M, Middleton, K, Rousset, G, Gendron, E, Kelz, A, Janssen, A, Pragt, J, Navarro, R, Larrieu, M, Hadi, K, Dohlen, K, Dalton, G, Lewis, IJ, Rodrigues, M, Morris, S, Kaper, L, Barbuy, B, Cuby, J-G, le Fèvre, O
Format: Conference item
Published: Society of Photo-optical Instrumentation Engineers 2018
Description
Summary: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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