Extended Data Fig. 4: Results of ATMO ‘2× PT’ retrieval analyses.
From: Diurnal variations in the stratosphere of the ultrahot giant exoplanet WASP-121b
Values listed are the posterior medians, with uncertainties giving the 1σ credible ranges. First row gives the results of the retrieval analysis performed for the dayside emission spectrum, with metallicity ([M/H]) fitted as a free parameter. Based on the retrieved metallicity for the dayside spectrum, the metallicity was held fixed to [M/H]=0.7 (that is 5× solar) for all other orbital phases. Last row gives the results of an additional retrieval performed as a check for phase ϕ=0.95 with [M/H] treated as a free parameter.
