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Table 1.

Rise time and power law rising shape of fast Type Ibn SNe, with literature values in square brackets.

SN Rise Uncertainty Power law α
(restframe d) (d)
SN 2018bcc 5.6 1.95 ± 0.22
iPTF15ul 4.0 [3.0] ±0.6 [0.7] 1.8 ± 0.4
LSQ13ccw [4.7] ±[2.1]
LSQ12btw [ < 3.8] (a)
PTF12ldy [6.2] ±[2.0]

Notes.

Calculation of the rise time and the power law fits to obtain the index α for SN 2018bcc and iPTF15ul were performed by us in Sect. 4.1. The remaining literature data were taken from the sample paper by Hosseinzadeh et al. (2017).

(a)

Peak cannot be determined.

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