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

Mugnai, Lorenzo V. ORCID: https://orcid.org/0000-0002-9007-9802, Al-Refaie, Ahmed, Bocchieri, Andrea, Changeat, Quentin, Pascale, Enzo and Tinetti, Giovanna 2021. Alfnoor: Assessing the information content of Ariel's low-resolution spectra with planetary population studies. The Astrophysical Journal 162 (6) , 288. 10.3847/1538-3881/ac2e92

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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 0.5–7.8 μm. 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 us to select candidate planets to be reobserved in Ariel’s higher-resolution tier, (2) we propose a metric to preliminary classify exoplanets by their atmospheric composition without performing an atmospheric retrieval, and (3) we introduce the possibility to find other methods to better exploit the data scientific content.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
ISSN:	0004-6256
Date of First Compliant Deposit:	1 June 2023
Date of Acceptance:	8 October 2021
Last Modified:	02 Jun 2023 05:51
URI:	https://orca.cardiff.ac.uk/id/eprint/159711

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