ANDES, the high resolution spectrograph for the ELT: opto-mechanical design of the cameras for the YJH spectrograph

Philippe Vallée; Denis Brousseau; Simon Thibault; Frédérique Baron; René Doyon; Jonathan Saint-Antoine; Étienne Artigau; Neil J. Cook; Alessio Zanutta

doi:10.1117/12.3018854

18 July 2024 ANDES, the high resolution spectrograph for the ELT: opto-mechanical design of the cameras for the YJH spectrograph

Philippe Vallée, Denis Brousseau, Simon Thibault, Frédérique Baron, René Doyon, Jonathan Saint-Antoine, Étienne Artigau, Neil J. Cook, Alessio Zanutta

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130964H (2024) https://doi.org/10.1117/12.3018854
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The ArmazoNes High Dispersion Echelle Spectrograph, or ANDES, is a second-generation instrument designed for use at the Extremely Large Telescope (ELT). As a fiber-fed echelle spectrograph, it consists of three spectral arms covering a wavelength range from 0.4 up to 1.8 μm, with the potential to extend coverage from 0.35 to 2.4 μm. This versatile instrument delivers an impressive spectral resolution of approximately 100,000, enabling highly sensitive observations of astronomical objects and phenomena, including exoplanets, fundamental scientific inquiries, and various cutting-edge research applications in astronomy. This article will describe the opto-mechanical design of the three cameras inside the YJH spectrograph. The mechanical design is based on an improved strategy used in instruments like CPAPIR, WIRCAM, SPIROU and NIRPS. The optical design is highly efficient and straightforward, employing the same four lenses for each band (Y, J, and H). The expected performance for the H-band will also be presented.

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

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Philippe Vallée, Denis Brousseau, Simon Thibault, Frédérique Baron, René Doyon, Jonathan Saint-Antoine, Étienne Artigau, Neil J. Cook, and Alessio Zanutta "ANDES, the high resolution spectrograph for the ELT: opto-mechanical design of the cameras for the YJH spectrograph", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130964H (18 July 2024); https://doi.org/10.1117/12.3018854

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