The curious case of EP241021a: Unraveling the mystery of its exceptional rebrightening

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Table C.2.

Supernova model fitting results.

Parameter	`default`	`magnetar`	`magni`	`csm`	`csmni`
P_spin [ms]	-	$0 . 95_{- 0.19}^{+ 0.36}$ $0.95_{-0.19}^{+0.36}$	$1 . 2_{- 0.4}^{+ 0.8}$ $1.2_{-0.4}^{+0.8}$	-	-
v_ej [km s⁻¹]	$97000_{- 4400}^{+ 2200}$ $97000_{-4400}^{+2200}$	$95800_{- 5500}^{+ 3000}$ $95800_{-5500}^{+3000}$	$96900_{- 4700}^{+ 2300}$ $96900_{-4700}^{+2300}$	$79400_{- 5300}^{+ 5700}$ $79400_{-5300}^{+5700}$	-
log(E_kin [10⁵¹ erg])	-	-	-	-	$1 . 96_{- 0.06}^{+ 0.03}$ $1.96_{-0.06}^{+0.03}$
log(T [K])	$3 . 88_{- 0.04}^{+ 0.05}$ $3.88_{-0.04}^{+0.05}$	$3 . 78_{- 0.04}^{+ 0.05}$ $3.78_{-0.04}^{+0.05}$	$3 . 85_{- 0.04}^{+ 0.04}$ $3.85_{-0.04}^{+0.04}$	$4 . 82_{- 0.04}^{+ 0.04}$ $4.82_{-0.04}^{+0.04}$	$4 . 13_{- 0.03}^{+ 0.03}$ $4.13_{-0.03}^{+0.03}$
M_NS [M_⊙]	-	$1 . 76_{- 0.14}^{+ 0.10}$ $1.76_{-0.14}^{+0.10}$	$1 . 70_{- 0.13}^{+ 0.13}$ $1.70_{-0.13}^{+0.13}$	-	-
M_ej [M_⊙]	$9 . 9_{- 0.9}^{+ 1.0}$ $9.9_{-0.9}^{+1.0}$	$36 . 8_{- 7.2}^{+ 14.7}$ $36.8_{-7.2}^{+14.7}$	$12 . 4_{- 2.1}^{+ 4.3}$ $12.4_{-2.1}^{+4.3}$	$118_{- 60}^{+ 54}$ $118_{-60}^{+54}$	$2 . 9_{- 0.5}^{+ 0.6}$ $2.9_{-0.5}^{+0.6}$
B_field [10¹⁴ G]	-	$7 . 5_{- 1.7}^{+ 2.9}$ $7.5_{-1.7}^{+2.9}$	$11 . 9_{- 2.2}^{+ 2.00}$ $11.9_{-2.2}^{+2.00}$	-	-
M_CSM [M_⊙]	-	-	-	$2 . 1_{- 0.5}^{+ 0.4}$ $2.1_{-0.5}^{+0.4}$	$95_{- 65}^{+ 66}$ $95_{-65}^{+66}$
log(ρ [g cm³])	-	-	-	$- 12 . 0_{- 0.8}^{+ 0.6}$ $-12.0_{-0.8}^{+0.6}$	$- 12 . 8_{- 0.8}^{+ 1.0}$ $-12.8_{-0.8}^{+1.0}$
r₀ [AU]	-	-	-	$0 . 8_{- 0.4}^{+ 0.6}$ $0.8_{-0.4}^{+0.6}$	$1 . 2_{- 0.5}^{+ 0.5}$ $1.2_{-0.5}^{+0.5}$
f_Ni	$0 . 47_{- 0.03}^{+ 0.02}$ $0.47_{-0.03}^{+0.02}$	-	$0 . 32_{- 0.14}^{+ 0.12}$ $0.32_{-0.14}^{+0.12}$	-	$0 . 33_{- 0.17}^{+ 0.12}$ $0.33_{-0.17}^{+0.12}$
A_V, z [mag]	$0 . 00_{- 0.00}^{0.01}$ $0.00_{-0.00}^{0.01}$	$0 . 00_{- 0.00}^{+ 0.01}$ $0.00_{-0.00}^{+0.01}$	$0 . 00_{- 0.00}^{+ 0.01}$ $0.00_{-0.00}^{+0.01}$	$2 . 49_{- 0.08}^{+ 0.08}$ $2.49_{-0.08}^{+0.08}$	$1 . 68_{- 0.12}^{+ 0.11}$ $1.68_{-0.12}^{+0.11}$

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