Simulation-based inference with neural posterior estimation applied to X-ray spectral fitting - III. Deriving exact posteriors with dimension reduction and importance sampling

Open Access

Fig. 18

Folded XRISM-Resolve spectrum of one snapshot observation of the Perseus cluster together with its reconstruction with a single temperature bvapec model. The C-STAT associated with the median of 1000 drawn posterior samples is very close to the C-STAT computed by XSPEC after minimization.

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