ANDES, the high resolution spectrograph for the ELT: RIZ spectrograph preliminary optical design

Audrey A. Lanotte; Bruno Chazelas; Christophe Lovis; Michael Weber; Manfred Woche; Ernesto Oliva; Bernard Delabre; Ludovic Genolet; Pablo Santos Diaz; Alessandro Marconi; Paolo Di Martantonio; Alessio Zanutta; Matteo Aliverti; Andrea Balestra; Lorenzo Cabona; Igor Coretti; Giorgio Pariani; Edoardo Redaelli; Marcello Scalera; Andrea Scaudo

doi:10.1117/12.3017976

18 July 2024 ANDES, the high resolution spectrograph for the ELT: RIZ spectrograph preliminary optical design

Audrey A. Lanotte, Bruno Chazelas, Christophe Lovis, Michael Weber, Manfred Woche, Ernesto Oliva, Bernard Delabre, Ludovic Genolet, Pablo Santos Diaz, Alessandro Marconi, Paolo Di Martantonio, Alessio Zanutta, Matteo Aliverti, Andrea Balestra, Lorenzo Cabona, Igor Coretti, Giorgio Pariani, Edoardo Redaelli, Marcello Scalera, Andrea Scaudo

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130964F (2024) https://doi.org/10.1117/12.3017976
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The first generation of ELT instruments includes an optical-infrared High Resolution Spectrograph, ANDES (ArmazoNes high Dispersion Echelle Spectrograph). The optical design and architecture of ANDES is primarily dictated by its high spectral resolving power (R=100'000), the area of the spectrograph slit projected onto the sky (> 1 arcsec²), its broad wavelength coverage and the large primary mirror of the ELT, and must foresee several huge fiber-fed spectrograph units. One of them is the RIZ spectrograph, covering wavelengths from 620 to 960 nm. It deals with a recomposed ~40-mm-long entrance slit and a pupil anamorphic magnification to overcome the limitation size of a mosaic 1.6-meter R4 Echelle grating. It requires two fast cameras with F/# close to the unity. This paper describes the preliminary optical design of the RIZ spectrograph instrument, its challenges, and its nominal and expected performances.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Audrey A. Lanotte, Bruno Chazelas, Christophe Lovis, Michael Weber, Manfred Woche, Ernesto Oliva, Bernard Delabre, Ludovic Genolet, Pablo Santos Diaz, Alessandro Marconi, Paolo Di Martantonio, Alessio Zanutta, Matteo Aliverti, Andrea Balestra, Lorenzo Cabona, Igor Coretti, Giorgio Pariani, Edoardo Redaelli, Marcello Scalera, and Andrea Scaudo "ANDES, the high resolution spectrograph for the ELT: RIZ spectrograph preliminary optical design", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130964F (18 July 2024); https://doi.org/10.1117/12.3017976

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