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18 July 2024 MOSAIC@ELT: the optical design of the NIR spectrograph
Johan Floriot, Eric Prieto, Zalpha Challita, Laurent Martin, Tony Pamplona, Kacem El Hadi, Franck Ducret, Gerardo Veredas, Ana Perez, Marisa L. García-Vargas, Jesús Gallego Maestro, Mathieu Puech, Roser Pello
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Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130965P (2024) https://doi.org/10.1117/12.3019939
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan
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Abstract
MOSAIC* is the multi-object spectrograph (MOS) for the ESO 39m European Extremely Large Telescope (ELT) approved to enter phase B at the of beginning 2023. MOSAIC combines visible and near-infrared channels, from resolved stars up to the most distant galaxies, with multi-object and multi-integral field spectroscopy capabilities. The NIR-spectrograph (130K-90K) is one sub-system of the NIR-channel, led by the Universidad Complutense de Madrid (UCM, Spain). The NIR Spectrograph (NIRSPEC) comprises 2 identical spectrographs, each one equipped with Teledyne H4RG science detectors (4kx4k, 15 μm pixels). Each spectrograph operates at 130K (with detectors at 90K) and covers the 2 observing bands J (1 – 1.38 μm) and H (1.43 – 1.85 μm in low-resolution mode and 1.52 – 1.65 μm in high-resolution mode). This paper presents the optical design of the NIRSPEC.
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Johan Floriot, Eric Prieto, Zalpha Challita, Laurent Martin, Tony Pamplona, Kacem El Hadi, Franck Ducret, Gerardo Veredas, Ana Perez, Marisa L. García-Vargas, Jesús Gallego Maestro, Mathieu Puech, and Roser Pello "MOSAIC@ELT: the optical design of the NIR spectrograph", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130965P (18 July 2024); https://doi.org/10.1117/12.3019939
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Sensors
Lawrencium
Design
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