3.8 Proceedings Paper

MOSAIC: the ELT Multi-Object Spectrograph

出版社

SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2314135

关键词

Spectrograph; Adaptive Optics; Optical Fibres; Multi-Object; ESO Extremely Large Telescope

资金

  1. STFC [ST/P000541/1, ST/N002660/1, ST/P006639/1, ST/N002717/1] Funding Source: UKRI

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Following a successful Phase A study, we introduce the delivered conceptual design of the MOSAIC(1) multi-object spectrograph for the ESO Extremely Large Telescope (ELT). MOSAIC will provide R similar to 5000 spectroscopy over the full 460-1800 nm range, with three additional high-resolution bands (R similar to 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: MOAO(6) 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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