NIRPS back-end: design and performance

Simon Thibault; Denis Brousseau; Anne-Sophie Poulin-Girard; Hugues Auger; Francois Wildi; René Doyon; Vladimir Reshetov; Lison Malo; Frédéric Baron; Philippe Vallée; Jonathan St-Antoine; Étienne Artigau; François Bouchy; Danuta Sosnowska; Michaël Sordet; Alex Segovia; Benjamin Küng; Olivier Hernandez

doi:10.1117/12.2630640

29 August 2022 NIRPS back-end: design and performance

Simon Thibault, Denis Brousseau, Anne-Sophie Poulin-Girard, Hugues Auger, Francois Wildi, René Doyon, Vladimir Reshetov, Lison Malo, Frédéric Baron, Philippe Vallée, Jonathan St-Antoine, Étienne Artigau, François Bouchy, Danuta Sosnowska, Michaël Sordet, Alex Segovia, Benjamin Küng, Olivier Hernandez

Author Affiliations +

Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 1218454 (2022) https://doi.org/10.1117/12.2630640
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

NIRPS is a near-infrared (YJH bands), fiber-fed, high-resolution precise radial velocity (PRV) spectrograph installed at the ESO 3.6-m telescope in La Silla, Chile. Using a dichroic, NIRPS will be operated simultaneously with the optical HARPS PRV spectrograph and will be used to conduct ambitious planet-search and characterization surveys. NIRPS aims at detecting and characterizing Earth-like planets in the habitable zone of low-mass dwarfs and obtain high-accuracy transit spectroscopy of exoplanets. The spectrograph is compact for better thermal stability. Using a custom R4 grating in combination with a state-of-the-art Hawaii4RG detector, the instrument provides a high resolution and high stability over the range of 950-1800 nm. This paper focuses on the lens and optomechanical design, assembly, and test of NIRPS’s spectrograph. Some performance tests conducted at Université Laval (Canada) during the integration and at La Silla during commissioning are presented

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Simon Thibault, Denis Brousseau, Anne-Sophie Poulin-Girard, Hugues Auger, Francois Wildi, René Doyon, Vladimir Reshetov, Lison Malo, Frédéric Baron, Philippe Vallée, Jonathan St-Antoine, Étienne Artigau, François Bouchy, Danuta Sosnowska, Michaël Sordet, Alex Segovia, Benjamin Küng, and Olivier Hernandez "NIRPS back-end: design and performance", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 1218454 (29 August 2022); https://doi.org/10.1117/12.2630640

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