Intrinsic and extinction colour components in SNe Ia and the determination of RV

Open Access

Fig. 3.

Intrinsic and extinction ratios as defined in Eq. (31) (i = 2, 6, 9) compared to the input and calculated δ_0i for R_V = 2.25. The compatibility is at the level of 0.001 for the extinction, and the relative accuracy of 0.05 for the (smaller) intrinsic colour (worst case). The red lines are linear fits to the data, and γ^out, δ^out are the values of the linear coefficients.

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