Table 5: Radial-velocity curves obtained for individual lines in the VLT/UVES spectra of Wray 977. The high value of $\chi _{r}^{2}$ indicates that the errors on the individual radial-velocity measurements are much smaller than the measured deviations from the best-fit curve.

Line $\lambda$		 $K_{\rm opt}$ $v_{\gamma}$ $\triangle \phi$ $\chi _{r}^{2}$
(Å) (km s-1) (km s-1)    
4366.89 $10.9 \pm 2.6$ $-7.3 \pm 2.4$ $0.01 \pm 0.02$ 35.6
4661.63 $10.2 \pm 2.7$ $-7.7 \pm 2.4$ $0.02 \pm 0.03$ 105.1
4813.33 $9.3 \pm 2.7$ $-4.1 \pm 2.4$ $0.03 \pm 0.03$ 9.8
4819.72 $9.6 \pm 3.3$ $-3.1 \pm 3.0$ $0.04 \pm 0.04$ 26.5
4828.96 $10.6 \pm 2.9$ $-1.8 \pm 2.7$ $0.03 \pm 0.03$ 27.1
5686.21 $9.5 \pm 3.5$ $-19.7 \pm 2.8$ $0.00 \pm 0.03$ 135.5
5696.60 $10.2 \pm 3.9$ $-13.3 \pm 3.1$ $0.01 \pm 0.04$ 291.8
5722.73 $10.2 \pm 3.8$ $-10.6 \pm 3.2$ $0.02 \pm 0.03$ 119.7
5739.73 $11.0 \pm 3.1$ $-9.3 \pm 2.6$ $0.00 \pm 0.03$ 377.3


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