Fig. 4

One- and two-dimensional histograms of the free parameters used to model J154518.5-342125 ALMA observations, resulting from the MCMC analysis. The marginalized PDFs of the parameters are plotted inthe top panels, including the 16th, 50th, and 84th percentiles as vertical dashed lines. The I0 and σ parameters are connected to the Gaussian model used, as defined in Eq. (2); i, PA, ΔRA, and ΔDec are geometrical parameters linked to the observations.
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