Table 3: Radial-velocity solutions for the He I 6678 line, based on classical RV measurements (solutions 1 and 2) and on KOREL disentangling (solution 3). Period was kept fixed at 1 $.\!\!^{\rm d}$2028287 and zero eccentricity was assumed. All epochs are in HJD-2451022 and the quoted errors of the elements are rms errors. The rms error of the solution is the rms error of one point of unit weight.

element
solution 1 solution 2 solution 3

$T_{\rm prim.min.}$
0.6663 $\pm$ 0.0038 0.6662 $\pm$ 0.0038 0.6675

K1 (km s-1)
166.7 $\pm$ 5.3 166.7 $\pm$ 5.3 171.7
K2 (km s-1) 215.9 $\pm$ 8.4 215.8 $\pm$ 8.4 219.6
$\gamma_{\rm CrAO}$ (km s-1) -17.2 $\pm$ 3.1 - -
$\gamma_{\rm DAO}$ (km s-1) -20.6 $\pm$ 2.8 - -
$\gamma_{\rm joint}$ (km s-1) - -17.9 $\pm$ 2.6 -19.2*
No. of RVs 55 55 60
rms (km s-1) 15.46 15.52 6.3
M1 sin3i ($M_{\odot}$) 3.94 3.94 4.19
M2 sin3i ($M_{\odot}$) 3.04 3.04 3.28
A sin i ($R_{\odot}$) 9.09 9.09 9.30
* Note that KOREL solution itself cannot give the systemic velocity. The value we quote is based on the mean
of RV measurements of positions of KOREL-disentangled profiles of both binary components in SPEFO.

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