Table 1: Adopted stellar (Hunger et al. 1989) and calculated windparameters of $\sigma $ Ori E.
Effective temperature $T_{\rm eff}$ 22 500 K
Stellar mass M $8.9~\ensuremath{{M}_\odot} $
Stellar radius R* $5.3~\ensuremath{{R}_\odot} $
$\log g$[CGS] 3.94
Mass-loss rate \ensuremath{\dot M} $2.4\times10^{-9}~\ensuremath{\ensuremath{{M}_\odot}~{\rm yr}^{-1}} $
Terminal velocity $v_\infty$ $1460~{\rm km}~{\rm s}^{-1}$

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