Poster + Paper
18 July 2024 NIRPS near-infrared spectrograph: AITV phase at ESO3.6m/La Silla
Lison Malo, Frédérique Baron, Anne-Sophie Poulin-Girard, Philippe Vallée, Jonathan St-Antoine, Denis Brousseau, Hugues Auger, Vladimir Reshetov, François Wildi, Michaël Sordet, Étienne Artigau, René Doyon, Simon Thibault, François Bouchy, Neil J. Cook, Yolanda Frensch, Gaspare Lo Curto, Gérard Zins, Danuta Sosnowska, Ivan Wevers, Dan Kerley, Guillaume Allain, Romain Allart, Norbert Hubin, Charles Cadieux, Andres Carmona, Zalpha Challita, Nolan Grieves, Olivier Hernandez, Thomas Vandal, Nicolas Blind, Lucile Mignon, Louise Nielsen, Francesco Pepe, Xavier Dumusque, Christophe Lovis, Bruno L. Canto Martins, José Renan de Medeiros, Xavier Delfosse, Nuno Santos, Jonay I. González-Hernández, Rafael Rebolo, Gregg Wade, Manuel Abreu, Susana Barros, Luc Bazinet, Isabelle Boisse, Xavier Bonfils, Vincent Bourrier, Sébastien Bovay, Christopher Broeg, Vincent Bruniquel, Alexandre Cabral, Yann Carteret, Bruno Chazelas, Ryan Cloutier, João Coelho, Marion Cointepas, Uriel Conod, Nicolas Cowan, Eduardo Cristo, Joao Gomes da Silva, Laurie Dauplaise, Roseane de Lima Gomes, Elisa Delgado-Mena, David Ehrenreich, Joao Faria, Pedro Figueira, Thierry Forveille, Jonathan Gagne, Frederic Genest, Ludovic Genolet, Félix Gracia Témich, Melissa J. Hobson, Jens Hoeijmakers, Vigneshwaran Krishnamurthy, David Lafreniere, Pierrot Lamontagne, Pierre Larue, Henry Leath, Izan C. Leão, Olivia Lim, Allan M. Martins, Claudio Melo, Yuri S. Messias, Leslie Moranta, Christoph Mordasini, Khaled Al Moulla, Dany Mounzer, Alexandrine L’Heureux, Nicola Nari, Ares Osborn, Lena Parc, Luca Pasquini, Vera M. Passegger, Stefan Pelletier, Celine Peroux, Caroline Piaulet, Mykhaylo Plotnykov, José Luis Rasilla, Mirsad Sarajlic, Alex Segovia, Julia Seidel, Damien Segransan, Ana Rita Costa Silva, Avidaan Srivastava, Atanas K. Stefanov, Alejandro Suárez Mascareño, Marcio A. Teixeira, Stephane Udry, Diana Valencia, Valentina Vaulato, Joost P. Wardenier, Bachar Wehbé, Drew Weisserman, Benjamin Kung, Anne Boucher, Robin Schnell, Armin Silber, Ivo Saviane, Emanuela Pompei, Peter Sinclaire
Author Affiliations +
Conference Poster
Abstract
NIRPS is a fiber-fed AO nIR spectrograph working simultaneously with HARPS at the La Silla-ESO 3.6m telescope. The cryogenic spectrograph operating at 75K employs a cross-dispersed echelle grating (R4), covering a wavelength range of 0.98-1.80 microns in a single image using a Teledyne Hawaii-4RG infrared detector. In early 2022, the NIRPS spectrograph was transported to Chile by plane with all the optical elements mechanically attached to the optical bench inside the vaccum vessel. To ensure the safety of the spectrograph, dedicated work was performed on the shipping crate design, which could survive up to 7g shocks. In La Silla, the vacuum vessel was re-integrated on its support structure and the spectrograph alignment was verified with the H4RG and the injection module. Given the optical design, the alignment phase was performed using a metrology arm and a few optical tests, which minimize the time required for this critical phase. From the validation/technical phase results, two major modifications were required. Firstly, the original grating element was replaced by a new etched crystalline silicon component made by the Fraunhofer Institute for Applied Optics and Precision Engineering. A novel technique was developed to verify the alignment at a warm temperature with the H4RG detector. Secondly, a thermal enclosure was added around the vacuum vessel to optimize thermal stability. Since then, the long-term thermal stability has been better than 0.2mK over 20 days. In this paper, we will review the final spectrograph performances, prior to shipping, and describe the novel techniques developed to minimize shipping costs, AITV phase duration, and grating replacement at the observatory. Additionally, we will discuss the thermal enclosure design to achieve the sub-mK thermal stability.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Lison Malo, Frédérique Baron, Anne-Sophie Poulin-Girard, Philippe Vallée, Jonathan St-Antoine, Denis Brousseau, Hugues Auger, Vladimir Reshetov, François Wildi, Michaël Sordet, Étienne Artigau, René Doyon, Simon Thibault, François Bouchy, Neil J. Cook, Yolanda Frensch, Gaspare Lo Curto, Gérard Zins, Danuta Sosnowska, Ivan Wevers, Dan Kerley, Guillaume Allain, Romain Allart, Norbert Hubin, Charles Cadieux, Andres Carmona, Zalpha Challita, Nolan Grieves, Olivier Hernandez, Thomas Vandal, Nicolas Blind, Lucile Mignon, Louise Nielsen, Francesco Pepe, Xavier Dumusque, Christophe Lovis, Bruno L. Canto Martins, José Renan de Medeiros, Xavier Delfosse, Nuno Santos, Jonay I. González-Hernández, Rafael Rebolo, Gregg Wade, Manuel Abreu, Susana Barros, Luc Bazinet, Isabelle Boisse, Xavier Bonfils, Vincent Bourrier, Sébastien Bovay, Christopher Broeg, Vincent Bruniquel, Alexandre Cabral, Yann Carteret, Bruno Chazelas, Ryan Cloutier, João Coelho, Marion Cointepas, Uriel Conod, Nicolas Cowan, Eduardo Cristo, Joao Gomes da Silva, Laurie Dauplaise, Roseane de Lima Gomes, Elisa Delgado-Mena, David Ehrenreich, Joao Faria, Pedro Figueira, Thierry Forveille, Jonathan Gagne, Frederic Genest, Ludovic Genolet, Félix Gracia Témich, Melissa J. Hobson, Jens Hoeijmakers, Vigneshwaran Krishnamurthy, David Lafreniere, Pierrot Lamontagne, Pierre Larue, Henry Leath, Izan C. Leão, Olivia Lim, Allan M. Martins, Claudio Melo, Yuri S. Messias, Leslie Moranta, Christoph Mordasini, Khaled Al Moulla, Dany Mounzer, Alexandrine L’Heureux, Nicola Nari, Ares Osborn, Lena Parc, Luca Pasquini, Vera M. Passegger, Stefan Pelletier, Celine Peroux, Caroline Piaulet, Mykhaylo Plotnykov, José Luis Rasilla, Mirsad Sarajlic, Alex Segovia, Julia Seidel, Damien Segransan, Ana Rita Costa Silva, Avidaan Srivastava, Atanas K. Stefanov, Alejandro Suárez Mascareño, Marcio A. Teixeira, Stephane Udry, Diana Valencia, Valentina Vaulato, Joost P. Wardenier, Bachar Wehbé, Drew Weisserman, Benjamin Kung, Anne Boucher, Robin Schnell, Armin Silber, Ivo Saviane, Emanuela Pompei, and Peter Sinclaire "NIRPS near-infrared spectrograph: AITV phase at ESO3.6m/La Silla", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 1309646 (18 July 2024); https://doi.org/10.1117/12.3020168
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KEYWORDS
Spectrographs

Vacuum

Sensors

Thermal stability

Lanthanum

Optical components

Equipment

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