Fig. 17.
Benetti et al. (2005) diagrams of R(Si II) and Si II velocity gradient as a function of Δm15 (left column). We replicated these diagrams using Δm15, s (center) and sBV (right column) instead as a SN light curve width parameter. In all panels, open symbols represent measurements from the original SN sample in Benetti et al. (2005), while filled symbols are measurements from the CSP-I (Folatelli et al. 2013).
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