SN 2021wuf: A transitional type Ia supernova with a low-velocity gradient

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Table 5.

Measured CompanionShocking3 parameters of SN 2021wuf.

Parameter	Units	Range of initial value	Best-fit value
t₀	MJD	59 440.5, 59 442.0	59 441.40 $_{- 0.30}^{+ 0.40}$ $^{+0.40}_{-0.30}$
a	10¹³ ∼ 144 R_⊙	0, 1	0.14 $_{- 0.05}^{+ 0.09}$ $^{+0.09}_{-0.05}$ × 10¹³
θ	Degree	0.5, 89.0	20.0 ± 10.0
T_max(B)	MJD	59 462.27, 59 468.27	59 462.28 $_{- 0.01}^{+ 0.02}$ $^{+0.02}_{-0.01}$
s	Dimensionless	0.9, 1.0	0.95 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$
Δt_U	Days	0.1, 1.5	1.0 $_{- 0.3}^{+ 0.4}$ $^{+0.4}_{-0.3}$
Δt_i	Days	0.1, 1.5	0.2 $_{- 0.1}^{+ 0.3}$ $^{+0.3}_{-0.1}$
σ	Dimensionless	0.10, 1.50	1.99 $_{- 0.02}^{+ 0.01}$ $^{+0.01}_{-0.02}$

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