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Table 2

Orbital elements of the HD 5550 system computed from six individual wavelength regions.

Parameter Unit Wavelength range (Å) Average
4042–4047 4125–4133 4170–4175 4557–4560 4822–4825 4916–4929

P days 6.82054 6.82054 6.82054 6.82054 6.82054 6.82054 6.82054(20)
T 0 HJD (24 000 00+) 50 988.42 50 988.50 50 988.47 50 988.43 50 988.53 50 988.43 50 988.46(5)
e 0.005 0.005 0.006 0.007 0.008 0.006 0.006(1)
ω degree 167.1 171.1 169.7 168.1 173.1 167.9 169.5(2.3)
K A km s-1 24.97 25.28 24.96 24.86 24.80 24.92 24.97(17)
K B km s-1 38.72 38.48 38.43 38.57 38.66 38.60 38.58(11)

Notes. Our final orbital solution is represented by the average values computed from these six regions; errors are 1σ standard deviations of the mean and are given in parenthesis in terms of last digits.

(⋆)

Adopted from Carrier et al. (2002). In the last column the uncertainty in bracket is from Carrier et al. (2002).

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