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Fig. 13


The pEW of the prominent UV spectral absorption features designated pW01 and pW02. The pEW measurements are presented for SN 1992A (Kirshner et al. 1993, yellow downward triangles), SN 2011fe (Mazzali et al. 2014, pink upward triangles), SN 2011iv (red circles), and SN 2013dy (Pan et al. 2015, blue left-sided triangles).

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