Confirmation of TiO absorption and tentative detection of MgH and CrH in the atmosphere of HAT-P-41b

Open Access

Table 3

Bayesian model comparison of the chemical species retrieved with the OSIRIS transmission spectrum.

Species	∆ ln 𝒵 ^(a)	Inferences
Na	0.11	Inconclusive
K	−0.46	Inconclusive
MgO	0.22	Inconclusive
AlO	0.37	Inconclusive
TiO	21.02	Strong
VO	−0.58	Inconclusive
MgH	2.32	Weak
AlH	−0.34	Inconclusive
CaH	0.09	Inconclusive
CrH	3.73	Moderate
FeH	−0.4	Inconclusive
	0.15	Inconclusive

Notes. ^(a) Logarithmic Bayesian evidence (ln 𝒵) of the full retrieval subtracting that of the hypothesis excluding one chemical species, where the uncertainty of ln 𝒵 is ~0.15. The values with boldface indicate l∆ ln 𝒵| ≥ 1.

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