Calibrating mid-infrared emission as a tracer of obscured star formation on H II-region scales in the era of JWST

Open Access

Fig. 8.

Relative importance of different band ratios in predicting the E(B − V) of H II regions using a random forest model. The error-bars are obtained by bootstrap random sampling. The mean squared errors (MSE) are shown for both the testing and the training set. I₂₁/I_Hα and I_2.0/I_Hα account for most of the variance in the data.

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