ATMOSPHERIX: I- An open source high resolution transmission spectroscopy pipeline for exoplanets atmospheres with SPIRou
TURBET, M.
Laboratoire de Météorologie Dynamique (UMR 8539) [LMD]
Institut Pierre-Simon-Laplace [IPSL (FR_636)]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
< Leer menos
Laboratoire de Météorologie Dynamique (UMR 8539) [LMD]
Institut Pierre-Simon-Laplace [IPSL (FR_636)]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Idioma
en
Document de travail - Pré-publication
Este ítem está publicado en
2023
Resumen en inglés
Atmospheric characterisation 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 ...Leer más >
Atmospheric characterisation 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 optimise 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)< Leer menos
Palabras clave en inglés
Earth and Planetary Astrophysics (astro-ph.EP)
Instrumentation and Methods for Astrophysics (astro-ph.IM)
FOS: Physical sciences
Orígen
Importado de HalCentros de investigación