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Table 4

Orbital elements for 06404608+0949173 in NGC 2264, and 19013257-0027338 in Be 81.

CNAME 06404608+0949173 19013257-0027338

P (d) 2.9637 ± 0.0002 15.528 ± 0.002
e 0.092 ± 0.006 0.170 ± 0.006
ω (°) 56.8 ± 3.9 265.7 ± 3.9
T0 – 2 400 000 (d) 56072.4085 ± 0.0351 56470.531 ± 0.140
V0 (km s-1) 14.32 ± 0.55 34.51 ± 0.66
ΔVB 0.00 (adopted) 24.8 ± 1.2
KA (km s-1) 106.3 ± 0.7 86.0 ± 0.9
KB (km s-1) 117.0 ± 0.6 97.0 ± 0.9
σA(O−C) (km s-1) 20.2 6.1
σB(O−C) (km s-1) 9.3 6.8
aAsini (Gm) 4.315 ± 0.030 18.1 ± 0.2
MA/MB 1.10 1.13
N 16 18

Notes. The orbital elements are the orbital period P, the eccentricity e, the argument of the periastron ω from the ascending node, the time of passage at periastron T0, the velocity of the centre-of-mass V0, the primary and secondary velocity amplitudes KA and KB, the projected primary semi-major axis on the plane of the sky aAsini and the primary to the secondary mass ratio MA/MB. σA(O−C) and σB(O−C) are the standard deviation of the residuals (observed calculated) of components A and B. N is the number of avalaible CCFs on which two velocity components are identified. For the meaning of ΔVB see Eq. (2) of Pourbaix & Boffin (2016).

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