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arXiv · 2110.00503

Alfnoor: assessing the information content of Ariel's low resolution spectra with planetary population studies

Lorenzo V. Mugnai·Ahmed Al-Refaie·Andrea Bocchieri·Quentin Changeat·Enzo Pascale·Giovanna Tinetti
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Abstract

The ARIEL Space Telescope will provide a large and diverse sample of exoplanet spectra, performing spectroscopic observations of about 1000 exoplanets in the wavelength range $0.5 \to 7.8 \; \mu m$. In this paper, we investigate the information content of ARIEL's Reconnaissance Survey low resolution transmission spectra. Among the goals of the ARIEL Reconnaissance Survey is also to identify planets without molecular features in their atmosphere. In this work, (1) we present a strategy that will allow to select candidate planets to be reobserved in a ARIEL's higher resolution Tier; (2) we propose a metric to preliminary classify exoplanets by their atmospheric composition without performing an atmospheric retrieval; (3) we introduce the possibility to find other methods to better exploit the data scientific content.

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Lorenzo V. Mugnai, Ahmed Al-Refaie, Andrea Bocchieri, Quentin Changeat, Enzo Pascale, Giovanna Tinetti. 2021-10-01. Alfnoor: assessing the information content of Ariel's low resolution spectra with planetary population studies. https://doi.org/10.3847/1538-3881%2Fac2e92

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