Dark skies of the slightly eccentric WASP-18 b from its optical-to-infrared dayside emission

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Table 4

Values of the eccentricity e and argument of periastron ω.

Publication		Published values (used as priors)	Posterior values matching $T_{occ}^{JWST}$ $T_\text{occ}^\text{JWST}$
Triaud et al. (2010)	^e	${0.00848}_{- 0.00095}^{+ 0.00085}$ $0.00848^{+0.00085}_{-0.00095}$	0.00852 ± 0.00091
	ω	${267.9}_{- 4.3}^{+ 4.9}$ $267.9^{+4.9}_{-4.3}$	${261.9}_{- 1.4}^{+ 1.3}$ $261.9^{+1.3}_{-1.4}$
Nymeyer et al. (2011)	e	0.0091 ± 0.0012	0.0092 ± 0.0012
	ω	269 ± 3	${262.8}_{- 1.5}^{+ 1.2}$ $262.8^{+1.2}_{-1.5}$
Csizmadia et al. (2019)	^e	0.0085 ± 0.0020	${0.00814}_{- 0.00070}^{+ 0.00074}$ $0.00814^{+0.00074}_{-0.00070}$
	ω	257.3 ± 2.1	${260.6}_{- 1.3}^{+ 1.2}$ $260.6^{+1.2}_{-1.3}$

Notes. Values of the argument of periastron ω are reported in degrees. Published e and ω values were used as priors in the form of e cos ω and e sin ω. The argument of periastron is defined in such a way that the inferior conjunction occurs at ω + ν = 90 deg, where ν is the true anomaly (see Eq. (3) and Appendix D).

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