Exploring extreme brightness variations in blue supergiant MACHO 80.7443.1718: Evidence for companion-driven enhanced mass loss

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Table 4.

Optimized parameters of ExtEV, resulting from fitting the SED to the data from Table 3.

Parameter	Optimized value with error
A_V (mag)	$0 . 73_{- 0.15}^{+ 0.18}$ $0.73^{+0.18}_{-0.15}$
R_V	$1 . 60_{- 0.21}^{+ 0.29}$ $1.60^{+0.29}_{-0.21}$
R₁ (R_⊙)	$30 . 0_{- 1.9}^{+ 2.4}$ $30.0^{+2.4}_{-1.9}$
λ_G (Å)	$2760_{- 290}^{+ 150}$ $2760^{+150}_{-290}$
α_G	$0 . 65_{- 0.17}^{+ 0.18}$ $0.65^{+0.18}_{-0.17}$
σ_G (Å)	$210_{- 180}^{+ 300}$ $210^{+300}_{-180}$
lnξ	$- 2 . 48_{- 0.22}^{+ 0.25}$ $-2.48^{+0.25}_{-0.22}$

log(L₁/L_⊙) ^( * )	$5 . 82_{- 0.05}^{+ 0.07}$ $5.82^{+0.07}_{-0.05}$

Notes. ^( * )Calculated from the obtained value of R₁ assuming T_eff = 30 000 K for the primary component.

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