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Fig. 1.


Light-curve (top panel) and photospheric velocities (bottom panel) for our reference model (see text) shown in blue solid line, corresponding to a magnetar with Erot = 10 foe and tp = 1 d. A characteristic maximum luminosity Lmax is derived as the mean of the three local maxima found in the LC (red dots). The intersection of the horizontal line defined as logLmax − 0.2 dex, with the LC provides the estimated temporal extent of that maximum, Δt. For comparison, we show the same SN model without a magnetar with dashed gray lines.

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