Deriving accurate galaxy cluster masses using X-ray thermodynamic profiles and graph neural networks

Open Access

Fig. 8.

1σ GNN model uncertainty, σ_GNN, estimated using KDE-based SBI, as a function of the true cluster mass $M_{500}^{True}$ $\mathrm{M}_{500}^{\mathrm{True} }$ . The inset shows that the posterior means match the GNN output (point estimates), indicating a well-calibrated model.

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