Fig. 3
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Graph illustrating the hierarchical Bayesian model employed in this work. The sky models in the upper layer correspond to the Gaussian fields, ψ,ρ, and χ, in that order. This graph omits several layers at the top, which are similar for each Gaussian field and contain the correlation structure modeling. For details on those, see Appendix A and Arras et al. (2022).
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