| Title: |
NIRPS joining HARPS at ESO 3.6 m |
| Authors: |
Bouchy, François; Doyon, René; Pepe, Francesco; Melo, Claudio; Artigau, Étienne; Malo, Lison; Wildi, François; Baron, Frédérique; Delfosse, Xavier; de Medeiros, Jose Renan; Rebolo, Rafael; Santos, Nuno; Wade, Gregg; Allart, Romain; Al Moulla, Khaled; Blind, Nicolas; Cadieux, Charles; Canto Martins, Bruno; Cook, Neil; Dumusque, Xavier; Frensch, Yolanda; Genest, Frédéric; González Hernández, Jonay; Grieves, Nolan; Lo Curto, Gaspare; Lovis, Christophe; Mignon, Lucile; Nielsen, Louise; Poulin-Girard, Anne-Sophie; Rasilla, José Luis; Reshetov, Vladimir; Sosnowska, Danuta; Sordet, Michael; Saint-Antoine, Jonathan; Mascareño, Alejandro Suárez; Thibault, Simon; Vallée, Philippe; Vandal, Thomas; Abreu, Manuel; Aguiar, José; Allain, Guillaume; Arial, Tomy; Auger, Hugues; Barros, Susana; Bazinet, Luc; Benneke, Björn; Bonfils, Xavier; Boucher, Anne; Bourrier, Vincent; Bovay, Sébastien; Broeg, Christopher; Brousseau, Denis; Bruniquel, Vincent; Bryan, Marta; Cabral, Alexandre; Carmona, Andres; Carteret, Yann; Challita, Zalpha; Chazelas, Bruno; Cloutier, Ryan; Coelho, João; Cointepas, Marion; Conod, Uriel; Cowan, Nicolas; Cristo, Eduardo; Gomes da Silva, João; Dauplaise, Laurie; Darveau-Bernier, Antoine; de Lima Gomes, Roseane; de Freitas, Daniel Brito; Delgado-Mena, Elisa; Delisle, Jean-Baptiste; Ehrenreich, David; Faria, João; Figueira, Pedro; Fontinele, Dasaev; Forveille, Thierry; Gagné, Jonathan; Genolet, Ludovic; Témich, Félix Gracia; Hernandez, Olivier; Hobson, Melissa; Hoeijmakers, Jens; Hubin, Norbert; Jahandar, Farbod; Jayawardhana, Ray; Käufl, Hans-Ulrich; Kerley, Dan; Kolb, Johann; Krishnamurthy, Vigneshwaran; Lafrenière, David; Lamontagne, Pierrot; Larue, Pierre; Leath, Henry; L’heureux, Alexandrine; de Castro Leão, Izan; Lim, Olivia; Martins, Allan; Matthews, Jaymie; Mayer, Jean-Sébastien; Messias, Yuri; Metchev, Stan; Moranta, Leslie; Mordasini, Christoph; Mounzer, Dany; Nari, Nicola; Osborn, Ares; Ouellet, Mathieu; Otegi, Jon; Parc, Léna; Pasquini, Luca; Passegger, Vera; Pelletier, Stefan; Peroux, Céline; Piaulet-Ghorayeb, Caroline; Plotnykov, Mykhaylo; Pompei, Emanuela; Rowe, Jason; Sarajlic, Mirsad; Segovia, Alex; Seidel, Julia; Ségransan, Damien; Schnell, Robin; Costa Silva, Ana Rita; Srivastava, Avidaan; Stefanov, Atanas; Teixeira, Márcio; Udry, Stéphane; Valencia, Diana; Vaulato, Valentina; Wardenier, Joost; Wehbe, Bachar; Weisserman, Drew; Wevers, Ivan; Yariv, Vincent; Zins, Gérard |
| Contributors: |
Observatoire Astronomique de l'Université de Genève (ObsGE); Université de Genève = University of Geneva (UNIGE); Université de Montréal (UdeM); Canada-France-Hawaii Telescope Corporation (CFHT); Institut national des sciences de l'Univers (INSU - CNRS)-National Research Council of Canada (NRC)-Centre National de la Recherche Scientifique (CNRS)-University of Hawai'i Honolulu (UH); Institut Trottier de Recherche sur les Exoplanètes (iREx); Institut de Planétologie et d'Astrophysique de Grenoble (IPAG); Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (Fédération OSUG)-Université Grenoble Alpes (UGA); Instituto de Astrofisica de Canarias (IAC); Instituto de Astrofísica e Ciências do Espaço (IASTRO); Departamento de Física e Astronomia Porto (DFA/FCUP); Faculdade de Ciências da Universidade do Porto (FCUP); Universidade do Porto = University of Porto-Universidade do Porto = University of Porto; Royal Military College of Canada (RMCC); Royal Military College of Canada; Laboratoire d'Astrophysique de Marseille (LAM); Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS); European Southern Observatory (ESO) |
| Source: |
ISSN: 0004-6361. |
| Publisher Information: |
CCSD; EDP Sciences |
| Publication Year: |
2025 |
| Collection: |
Université Grenoble Alpes: HAL |
| Subject Terms: |
[SDU]Sciences of the Universe [physics] |
| Description: |
International audience ; Context . The Near-InfraRed Planet Searcher (NIRPS) is a high-resolution, high-stability near-infrared (NIR) spectrograph equipped with an adaptive optics (AO) system. Installed on the ESO 3.6-m telescope at La Silla Observatory, Chile, it was developed to enable radial velocity (RV) measurements of low-mass exoplanets around M dwarfs and to characterise exoplanet atmospheres in the NIR. Aims . This paper provides a comprehensive design overview and characterisation of the NIRPS instrument, reporting on its on-sky performance, advising on how to carry out observations, and presenting its guaranteed time observation (GTO) programme. Methods . Intensive on-sky testing phases were conducted between November 2019 and March 2023. The instrument started its operations on 1 April 2023. Results . The spectral range continuously covers the Y , J , and H bands from 972.4 to 1919.6 nm. The thermal control system maintains 1 mK stability over several months, thereby minimising drift. The NIRPS’s AO-assisted fibre link improves coupling efficiency and offers a unique high-angular resolution capability with a fibre acceptance of only 0.4″. A high spectral resolving power of R ~ 90 000 and R ~ 75 000 is provided in high-accuracy (HA) and high-efficiency (HE) modes, respectively. The overall throughput from the top of the atmosphere to the detector peaks at 13%. The RV precision, measured on the bright star Proxima with a known exoplanetary system, is 77 cms −1 . NIRPS and HARPS can be used simultaneously, offering unprecedented spectral coverage for spectroscopic characterisation and stellar activity mitigation. Modal noise can be aptly mitigated by the implementation of fibre stretchers and AO scanning mode. Conclusions . Initial results confirm that NIRPS opens new possibilities for RV measurements, stellar characterisation, and exoplanet atmosphere studies with high precision and high spectral fidelity. NIRPS demonstrated stable RV precision at the level of 1 m s −1 over several weeks. The ... |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/arxiv/2507.21767; ARXIV: 2507.21767 |
| DOI: |
10.1051/0004-6361/202453341 |
| Availability: |
https://amu.hal.science/hal-05492938; https://amu.hal.science/hal-05492938v1/document; https://amu.hal.science/hal-05492938v1/file/aa53341-24.pdf; https://doi.org/10.1051/0004-6361/202453341 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.90C027D0 |
| Database: |
BASE |