ATMOSPHERIX: I- an open source high-resolution transmission spectroscopy pipeline for exoplanets atmospheres with SPIRou

ABSTRACT Atmospheric characterization of exoplanets from the ground is an actively growing field of research. In this context, we have created the ATMOSPHERIX consortium: a research project aimed at characterizing exoplanets atmospheres using ground-based high-resolution spectroscopy. This paper pre...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2024-01, Vol.527 (1), p.544-565
Hauptverfasser: Klein, Baptiste, Debras, Florian, Donati, Jean-François, Hood, Thea, Moutou, Claire, Carmona, Andres, Ould-elkhim, Merwan, Bézard, Bruno, Charnay, Benjamin, Fouqué, Pascal, Masson, Adrien, Vinatier, Sandrine, Baruteau, Clément, Boisse, Isabelle, Bonfils, Xavier, Chiavassa, Andrea, Delfosse, Xavier, Dethier, William, Hebrard, Guillaume, Kiefer, Flavien, Leconte, Jérémy, Martioli, Eder, Parmentier, Vivien, Petit, Pascal, Pluriel, William, Selsis, Franck, Teinturier, Lucas, Tremblin, Pascal, Turbet, Martin, Venot, Olivia, Wyttenbach, Aurélien
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container_issue 1
container_start_page 544
container_title Monthly notices of the Royal Astronomical Society
container_volume 527
creator Klein, Baptiste
Debras, Florian
Donati, Jean-François
Hood, Thea
Moutou, Claire
Carmona, Andres
Ould-elkhim, Merwan
Bézard, Bruno
Charnay, Benjamin
Fouqué, Pascal
Masson, Adrien
Vinatier, Sandrine
Baruteau, Clément
Boisse, Isabelle
Bonfils, Xavier
Chiavassa, Andrea
Delfosse, Xavier
Dethier, William
Hebrard, Guillaume
Kiefer, Flavien
Leconte, Jérémy
Martioli, Eder
Parmentier, Vivien
Petit, Pascal
Pluriel, William
Selsis, Franck
Teinturier, Lucas
Tremblin, Pascal
Turbet, Martin
Venot, Olivia
Wyttenbach, Aurélien
description ABSTRACT Atmospheric characterization of exoplanets from the ground is an actively growing field of research. In this context, we have created the ATMOSPHERIX consortium: a research project aimed at characterizing exoplanets atmospheres using ground-based high-resolution spectroscopy. This paper presents the publicly available data analysis pipeline and demonstrates the robustness of the recovered planetary parameters from synthetic data. Simulating planetary transits using synthetic transmission spectra of a hot Jupiter that were injected into real SPIRou observations of the non-transiting system Gl 15 A, we show that our pipeline is successful at recovering the planetary signal and input atmospheric parameters. We also introduce a deep learning algorithm to optimize data reduction which proves to be a reliable, alternative tool to the commonly used principal component analysis. We estimate the level of uncertainties and possible biases when retrieving parameters such as temperature and composition and hence the level of confidence in the case of retrieval from real data. Finally, we apply our pipeline onto two real transits of HD 189733 b observed with SPIRou and obtain similar results than in the literature. In summary, we have developed a publicly available and robust pipeline for the forthcoming studies of the targets to be observed in the framework of the ATMOSPHERIX consortium, which can easily be adapted to other high resolution instruments than SPIRou (e.g. VLT-CRIRES, MAROON-X, ELT-ANDES).
doi_str_mv 10.1093/mnras/stad2607
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subjects Algorithms
Consortia
Data analysis
Extrasolar planets
Gas giant planets
High resolution
Machine learning
Parameter estimation
Parameter robustness
Parameter uncertainty
Planetary composition
Principal components analysis
Research projects
Sciences of the Universe
Spectrum analysis
Synthetic data
Transit
Uncertainty analysis
title ATMOSPHERIX: I- an open source high-resolution transmission spectroscopy pipeline for exoplanets atmospheres with SPIRou
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