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Table C.1.

Summary of mean host galaxy reddening values of SNe Ib and Ic and their differences from recent studies.

Reference Method Type Ib Type Ic Type Ic − Type Ib

E(B − V)host [mag] E(B − V)host [mag] ΔE(B − V)host [mag]
Stritzinger et al. (2018)a Color template 0.24 ± 0.09 (5) 0.26 ± 0.06 (8) 0.02 ± 0.11 (13)
Prentice et al. (2019)b Na I D 0.03 ± 0.01 (6) 0.70 ± 0.39 (3) 0.67 ± 0.39 (9)
Afsariardchi et al. (2021)c Color template 0.29 ± 0.07 (8) 0.23 ± 0.09 (4) −0.06 ± 0.12 (12)
Rodríguez et al. (2023)d Na I D+Color template 0.19 ± 0.02 (50) 0.24 ± 0.03 (70) 0.05 ± 0.04 (120)

The “Method” column indicates how host galaxy reddening was estimated in each reference (see text). The uncertainties represent standard error of the mean. The numbers in parenthesis indicate the number of objects in each subset. We compile E(B − V)host values as follows. aFrom their table 3. bFrom their table 1, where values reported as “negligible” are treated as zero reddening. cFrom their table 1. dFrom their table E7.

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