Extremely Large Telescope

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

(2016)

Authors:

F Hammer, S Morris, L Kaper, B Barbuy, JG Cuby, M Roth, P Jagourel, CJ Evans, M Puech, E Fitzsimons, G Dalton, M Rodrigues
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Science Requirements and Trade-offs for the MOSAIC Instrument for the European ELT

(2016)

Authors:

CJ Evans, M Puech, M Rodrigues, B Barbuy, J-G Cuby, G Dalton, E Fitzsimons, F Hammer, P Jagourel, L Kaper, SL Morris, TJ Morris
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Detection of the secondary eclipse of Qatar-1b in the Ks band

(2016)

Authors:

Patricia Cruz, David Barrado, Jorge Lillo-Box, Marcos Diaz, Jayne Birkby, Mercedes López-Morales, Jonathan J Fortney
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Can the European ELT detect super-Earths? Measuring the contrast limit of an image slicer spectrograph in a laboratory experiment

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 9908 (2016) 99089r-99089r-8

Authors:

Robert M Barnsley, Matthias Tecza, Niranjan A Thatte
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Design of the calibration unit for the WEAVE multi-object spectrograph at the WHT

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

Authors:

Lilian Dominguez, Diego Cano, Neil O'Mahony, Carlos Martin, Sergio Pico, Chris R Benn, Scott C Trager, Emilie Lhomé, Andy Ridings, Cecilia Fariña, Don C Abrams, Marc Balcells, Mike Irwin, Jim Lewis, J Alfonso L Aguerri, Piercarlo Bonifacio, Antonella Vallenari, Esperanza Carrasco, Gavin Dalton

Abstract:

WEAVE is the next-generation spectroscopic facility for the William Herschel Telescope (WHT), offering multi-object (1000 fibres) and integral-field spectroscopy at two resolutions (R ~ 5000, 20000) over a 2-deg field of view at prime focus. WEAVE will (mainly) provide optical follow up of ground-based (LOFAR) and space-based (GAIA) surveys. First light is expected in mid 2018. Here, we describe the calibration unit, which will be adapted from an existing unit for the AF2+WYFFOS spectrograph (WEAVE's precursor) at the WHT. We summarise the results from a thorough characterisation of current performance (e.g. intensity, stability and focal-plane coverage of illumination as a function of lamp type and wavelength). We then set out our plans for upgrading the unit and its control systems to meet the WEAVE science and operational requirements. We conclude from this assessment that the upgraded AF2+WYFFOS calibration unit will meet the requirements for WEAVE. The design of the WEAVE calibration unit is now complete.
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