[Les exoplanètes et leurs étoiles vues par SPIRou : vélocimétrie de précision dans l’infrarouge proche et spectropolarimétrie]
Les mesures de vitesse radiale de haute précision dans l’infrarouge proche permettent de rechercher le signal d’exoplanètes autour d’étoiles de faible masse, en incluant les étoiles précoces. Comme ces étoiles sont parmi les plus actives, il est essentiel de caractériser leur activité magnétique. L’instrument SPIRou, installé au télescope Canada–France–Hawai’i, a été conçu pour explorer de tels systèmes extra-solaires et caractériser leurs propriétés. Avec un domaine spectral étendu et un pouvoir de résolution élevé, SPIRou est également optimisé pour la spectroscopie de transmission, permettant d’étudier la composition chimique des atmosphères d’exoplanètes.
High-precision radial-velocity measurements in the near-infrared allow one to search for exoplanet signals around the lowest-mass stars, including young ones. Because these stars can be among the most active ones, it is essential to characterize their magnetic activity. SPIRou, installed at the Canada–France–Hawai’i telescope, was designed to explore such planetary systems and characterize their properties. With a wide spectral range and large resolving power, SPIRou is also optimized for transmission spectroscopy and for investigating the chemical composition of exoplanetary atmospheres.
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Mot clés : Exoplanètes, Étoiles, Techniques spectroscopiques, Atmosphères, Champs magnétiques
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@article{CRPHYS_2023__24_S2_A5_0,
author = {Claire Moutou and Jean-Fran\c{c}ois Donati and Florian Debras},
title = {Exoplanet science with {SPIRou:} near-infrared precision velocimetry and spectropolarimetry},
journal = {Comptes Rendus. Physique},
publisher = {Acad\'emie des sciences, Paris},
year = {2023},
doi = {10.5802/crphys.141},
language = {en},
note = {Online first},
}
TY - JOUR AU - Claire Moutou AU - Jean-François Donati AU - Florian Debras TI - Exoplanet science with SPIRou: near-infrared precision velocimetry and spectropolarimetry JO - Comptes Rendus. Physique PY - 2023 PB - Académie des sciences, Paris N1 - Online first DO - 10.5802/crphys.141 LA - en ID - CRPHYS_2023__24_S2_A5_0 ER -
%0 Journal Article %A Claire Moutou %A Jean-François Donati %A Florian Debras %T Exoplanet science with SPIRou: near-infrared precision velocimetry and spectropolarimetry %J Comptes Rendus. Physique %D 2023 %I Académie des sciences, Paris %Z Online first %R 10.5802/crphys.141 %G en %F CRPHYS_2023__24_S2_A5_0
Claire Moutou; Jean-François Donati; Florian Debras. Exoplanet science with SPIRou: near-infrared precision velocimetry and spectropolarimetry. Comptes Rendus. Physique, Online first (2023), pp. 1-8. doi : 10.5802/crphys.141.
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