Simulation-based inference with neural posterior estimation applied to X-ray spectral fitting - Demonstration of working principles down to the Poisson regime

Open Access

Fig. 4

Prior predictive check showing that coarse inference provides good coverage of reference spectrum (Spectrum₂₀₀₀₀counts). The coverage of the restricted prior is indicated in red. The median of the spectra sampled from the restrictor (blue line) is to be compared with the reference spectrum (green line).

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