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Table 3.

Orbital solutions for St 2-22.

Porb Vγ Kg Kh q e ω T0(a) Tic(b) f(m) a sin i
[day] [km s−1] [km s−1] [km s−1] [Mg ] [deg] [JD−2 450 000] [M⊙] [AU]
918.0 ± 6.0 31.98 ± 0.30 7.03 ± 0.45 24.6 ± 1.9 3.50 ± 0.53 0.16 ± 0.07 251 ± 22 8613 ± 52 8661 0.0331 ± 0.0066 2.67 ± 0.55
918.0 (c) 30.66 ± 1.74 – 25.8 ± 2.8 – 0.29 ± 0.09 67 ± 27 8613 ± 49 – – –
922.1 ± 6.4 31.80 ± 0.34 6.85 ± 0.44 23.1 ± 2.4 3.37 ± 0.61 0 – – 8658.8 ± 10.4 0.0307 ± 0.0062 2.54 ± 0.60

Notes. The errors are 1σ values.

(a)

T0 is a time of the periastron passage for the eccentric orbit.

(b)

Tic is a time of inferior conjunction.

(c)

Additional solution for RVcF only, adopting an orbital period from the eccentric solution when velocities of both components were used.

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