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June 12, 2024Open Access

Exploring the ultra-hot Jupiter WASP-178b. Constraints on atmospheric chemistry and dynamics from a joint retrieval of VLT/CRIRES^+ and space photometric data

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Authors

DCD. ContLNL. NortmannFYF. Yan

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Overview

Spectroscopic analysis reveals a thermal inversion and super-rotating winds in the ultra-hot Jupiter WASP-178b, indicating chemical inhomogeneities across the dayside.

Key Points

  • Atmospheric thermal inversion occurs on WASP-178b with carbon monoxide detected at S/N = 8.9 and water vapor at S/N = 4.9 across the irradiated dayside.
  • Bayesian retrieval framework applied to high-resolution spectra constrains atmospheric chemistry, incorporating photometric data from TESS and CHEOPS.
  • Highlights the power of combined ground and space observations for exoplanet atmospheres, yielding an upper limit on planetary geometric albedo of 0.23.

Cite This Study

Cont et al. (2024) studied this question.

synapsesocial.com/papers/68e651cbb6db6435875e26e9https://doi.org/10.48550/arxiv.2406.08166
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