A survey of exoplanet phase curves with Ariel

Charnay, Benjamin, Mendonça, João M., Kreidberg, Laura, Cowan, Nicolas B., Taylor, Jake, Bell, Taylor J., Demangeon, Olivier, Edwards, Billy, Haswell, Carole A., Morello, Giuseppe, Mugnai, Lorenzo V. ORCID: https://orcid.org/0000-0002-9007-9802, Pascale, Enzo ORCID: https://orcid.org/0000-0002-3242-8154, Tinetti, Giovanna, Tremblin, Pascal and Zellem, Robert T. 2022. A survey of exoplanet phase curves with Ariel. Experimental Astronomy 53 (2) , pp. 417-446. 10.1007/s10686-021-09715-x

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Abstract

The ESA-Ariel mission will include a tier dedicated to exoplanet phase curves corresponding to ∼10% of the science time. We present here the current observing strategy for studying exoplanet phase curves with Ariel. We define science questions, requirements and a list of potential targets. We also estimate the precision of phase curve reconstruction and atmospheric retrieval using simulated phase curves. Based on this work, we found that full-orbit phase variations for 35-40 exoplanets could be observed during the 3.5-yr mission. This statistical sample would provide key constraints on atmospheric dynamics, composition, thermal structure and clouds of warm exoplanets, complementary to the scientific yield from spectroscopic transits/eclipses measurements.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	Springer
ISSN:	0922-6435
Date of Acceptance:	15 February 2021
Last Modified:	02 Jun 2023 12:34
URI:	https://orca.cardiff.ac.uk/id/eprint/159710

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