Publications by Myriam Arnal Rodrigues

The E-ELT Multi-Object Spectrograph: latest news from MOSAIC

Proceedings of SPIE Society of Photo-optical Instrumentation Engineers 9908 (2016)

F Hammer, SL Morris, L Kaper, B Barbuy, J-G Cuby, MM Roth, P Jagourel, CJ Evans, M Puech, E Fitzsimons, G Dalton, M Rodrigues

<p>There are 8000 galaxies, including 1600 at z≥ 1.6, which could be simultaneously observed in an E-ELT field of view of 40 arcmin^2. A considerable fraction of astrophysical discoveries require large statistical samples, which can only be obtained with multi-object spectrographs (MOS). MOSAIC will provide a vast discovery space, enabled by a multiplex of 200 and spectral resolving powers of R=5000 and 20000. MOSAIC will also offer the unique capability of more than 10 `high-definition' (multi-object adaptive optics, MOAO) integral-field units, optimised to investigate the physics of the sources of reionization. The combination of these modes will make MOSAIC the world-leading MOS facility, contributing to all fields of contemporary astronomy, from extra-solar planets, to the study of the halo of the Milky Way and its satellites, and from resolved stellar populations in nearby galaxies out to observations of the earliest ‘first-light’ structures in the Universe. It will also study the distribution of the dark and ordinary matter at all scales and epochs of the Universe.</p> <br/> <p>Recent studies of critical technical issues such as sky-background subtraction and MOAO have demonstrated that such a MOS is feasible with state-of-the-art technology and techniques. Current studies of the MOSAIC team include further trade-offs on the wavelength coverage, a solution for compensating for the non-telecentric new design of the telescope, and tests of the saturation of skylines especially in the near-IR bands. In the 2020s the E-ELT will become the world's largest optical/IR telescope, and we argue that it has to be equipped as soon as possible with a MOS to provide the most efficient, and likely the best way to follow-up on James Webb Space Telescope (JWST) observations.</p>

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