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.
A survey of exoplanet phase curves with Ariel / Charnay, B.; Mendonca, J. M.; Kreidberg, L.; Cowan, N. B.; Taylor, J.; Bell, T. J.; Demangeon, O.; Edwards, B.; Haswell, C. A.; Morello, G.; Mugnai, Lorenzo. V.; Pascale, Enzo.; Tinetti, G.; Tremblin, P.; Zellem, R. T.. - In: EXPERIMENTAL ASTRONOMY. - ISSN 0922-6435. - (2021). [10.1007/s10686-021-09715-x]
A survey of exoplanet phase curves with Ariel
Mugnai Lorenzo. V.;Pascale Enzo.;Tinetti G.;
2021
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.File | Dimensione | Formato | |
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