True masses using radial velocity data with HIPPARCOS and Gaia astrometry

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Volume 707 (March 2026)

A&A, 707 (2026) A104

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Table 4

Derived parameters for HD 222237 b.

Parameter	Xiao et al. (2024) (RV+HG3)	Xiao et al. (2024) (RV+HG23)	This work
Prograde solution
i_p (deg)	$57 . 8_{- 3.8}^{+ 4.9}$ $Mathematical equation: $57.8_{-3.8}^{+4.9}$$	$49 . 9_{- 2.8}^{+ 3.4}$ $Mathematical equation: $49.9_{-2.8}^{+3.4}$$	$55 . 3_{- 3.0}^{+ 4.4}$ $Mathematical equation: $55.3_{-3.0}^{+4.4}$$
Ω(deg)	$76 . 0_{- 6.1}^{+ 7.4}$ $Mathematical equation: $76.0_{-6.1}^{+7.4}$$	$69 . 8_{- 5.7}^{+ 6.7}$ $Mathematical equation: $69.8_{-5.7}^{+6.7}$$	$69 . 9_{- 5.7}^{+ 7.4}$ $Mathematical equation: $69.9_{-5.7}^{+7.4}$$
M_c(M_Jup)	$4 . 56_{- 0.49}^{+ 0.51}$ $Mathematical equation: $4.56_{-0.49}^{+0.51}$$	5.19 ± 0.58	4.78 ± 0.42
Retrograde solution
i_r (deg)	$122 . 9_{- 4.5}^{+ 3.3}$ $Mathematical equation: $122.9_{-4.5}^{+3.3}$$	−	$125 . 0_{- 4.3}^{+ 2.8}$ $Mathematical equation: $125.0_{-4.3}^{+2.8}$$
Ω (deg)	$135 . 3_{- 6.9}^{+ 5.6}$ $Mathematical equation: $135.3_{-6.9}^{+5.6}$$	−	$139 . 7_{- 7.2}^{+ 5.3}$ $Mathematical equation: $139.7_{-7.2}^{+5.3}$$
M_c (M_Jup)	−	−	$4 . 81_{- 0.43}^{+ 0.41}$ $Mathematical equation: $4.81_{-0.43}^{+0.41}$$

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