SN 2017ati: A luminous type IIb explosion from a massive progenitor

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Table B.4.

Marginalised posteriors for the MOSFiT model of SN 2017ati.

Parameter	⁵⁶Ni	⁵⁶Ni +CSM	⁵⁶Ni+Magnetar	Units
B	–	–	$13 . 18_{- 4.27}^{+ 4.60}$ $Mathematical equation: $ 13.18^{+4.60}_{-4.27} $$	10¹⁴G
P_spin	–	–	$28 . 18_{- 6.3}^{+ 2.72}$ $Mathematical equation: $ 28.18^{+2.72}_{-6.3} $$	ms
n_H, host	–	$10 . 91_{- 0.68}^{+ 1.39}$ $Mathematical equation: $ 10.91^{+1.39}_{-0.68} $$	–	10²⁰ cm⁻²
E_k	–	$8 . 71_{- 1.79}^{+ 2.68}$ $Mathematical equation: $ 8.71^{+2.68}_{-1.79} $$	–	10⁵⁰ erg
M_CSM	–	$0 . 13_{- 0.05}^{+ 0.10}$ $Mathematical equation: $ 0.13^{+0.10}_{-0.05} $$	–	M_⊙
R₀	–	$3 . 82_{2.15}^{+ 4.65}$ $Mathematical equation: $ 3.82^{+4.65}_{2.15} $$	–	AU
ρ₀	–	$2 . 33_{- 1.81}^{+ 8.61}$ $Mathematical equation: $ 2.33^{+8.61}_{-1.81} $$	–	10⁻¹⁰ g cm⁻³
M_ej	$1 . 70_{- 0.38}^{+ 0.44}$ $Mathematical equation: $ 1.70^{+0.44}_{-0.38} $$	$2 . 18_{- 0.57}^{+ 0.29}$ $Mathematical equation: $ 2.18^{+0.29}_{-0.57} $$	$1 . 82_{- 0.59}^{+ 0.53}$ $Mathematical equation: $ 1.82^{+0.53}_{-0.59} $$	M_⊙
M_⁵⁶Ni	$0 . 37_{- 0.10}^{+ 0.07}$ $Mathematical equation: $ 0.37_{-0.10}^{+0.07} $$	$0 . 49_{- 0.12}^{+ 0.19}$ $Mathematical equation: $ 0.49_{-0.12}^{+0.19} $$	$0 . 21_{- 0.12}^{+ 0.08}$ $Mathematical equation: $ 0.21_{-0.12}^{+0.08} $$	M_⊙
κ_γ	$0 . 06_{- 0.01}^{+ 0.03}$ $Mathematical equation: $ 0.06^{+0.03}_{-0.01} $$	$0 . 27_{- 0.08}^{+ 0.11}$ $Mathematical equation: $ 0.27^{+0.11}_{-0.08} $$	$0 . 33_{- 0.05}^{+ 0.12}$ $Mathematical equation: $ 0.33^{+0.12}_{-0.05} $$	cm² g⁻¹
T_min	$4 . 47_{- 0.20}^{+ 0.21}$ $Mathematical equation: $ 4.47^{+0.21}_{-0.20} $$	$5 . 17_{- 0.13}^{+ 0.11}$ $Mathematical equation: $ 5.17^{+0.11}_{-0.13} $$	$4 . 57_{- 0.10}^{+ 0.11}$ $Mathematical equation: $ 4.57^{+0.11}_{-0.10} $$	10³ K
σ	$0 . 37_{- 0.02}^{+ 0.03}$ $Mathematical equation: $ 0.37^{+0.03}_{-0.02} $$	$0 . 18_{- 0.01}^{+ 0.01}$ $Mathematical equation: $ 0.18^{+0.01}_{-0.01} $$	$0 . 17_{- 0.02}^{+ 0.01}$ $Mathematical equation: $ 0.17^{+0.01}_{-0.02} $$
v_ej	$3 . 63_{- 0.24}^{+ 0.26}$ $Mathematical equation: $ 3.63^{+0.26}_{-0.24} $$	$8 . 18_{- 1.88}^{+ 2.71}$ $Mathematical equation: $ 8.18^{+2.71}_{-1.88} $$	$7 . 24_{- 0.64}^{+ 0.70}$ $Mathematical equation: $ 7.24^{+0.70}_{-0.64} $$	10³ km s⁻¹
t_exp	$- 33 . 97_{- 1.03}^{+ 1.55}$ $Mathematical equation: $ -33.97^{+1.55}_{-1.03} $$	$- 3 . 62_{- 0.53}^{+ 0.46}$ $Mathematical equation: $ -3.62^{+0.46}_{-0.53} $$	$- 7 . 36_{- 0.99}^{+ 1.04}$ $Mathematical equation: $ -7.36^{+1.04}_{-0.99} $$	days

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