SN 2023xqm: A gradually fading Ia supernova exhibiting isolated high-velocity signatures

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Table 5.

Measured parameters of the CompanionShocking3 model for SN 2023xqm.

Parameters	Units	Initial value	Best-fit value
t₀	MJD	60 257,60 259	60 258.3 $_{- 0.7}^{+ 0.5}$ $^{+0.5}_{-0.7}$
a	10¹³ ∼ 144 R_⊙	0,100	0.04 $_{- 0.02}^{+ 0.03}$ $^{+0.03}_{-0.02}$
θ	degree	0,90	50 $_{- 30}^{+ 20}$ $^{+20}_{-30}$
t_max(B)	MJD	60 270,60 300	60 276.2 $_{- 0.1}^{+ 0.1}$ $^{+0.1}_{-0.1}$
s	dimensionless	0,2	1.043 $_{- 0.005}^{+ 0.004}$ $^{+0.004}_{-0.005}$
Δt_U	days	0,2	0.8 $_{- 0.2}^{+ 0.2}$ $^{+0.2}_{-0.2}$
Δt_i	days	0,2	0.3 $_{- 0.1}^{+ 0.1}$ $^{+0.1}_{-0.1}$
σ	dimensionless	0,2	0.8 $_{- 0.1}^{+ 0.1}$ $^{+0.1}_{-0.1}$

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