Cold giant discoveries from a joint radial-velocity and astrometry framework - EMPEROR II – Jupiter analogues around metal-rich CHEPS stars

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Table 1

Stellar parameters.

Parameter	HIP 8923	HIP 10090	HIP 21850	HIP 39330	HIP 98599
¹Spectral type	G3V	K0	G8V	G5V	F7V
¹B – V	0.638	0.766	0.773	0.655	0.556
¹V	8.24	8.94	8.41	7.52	8.11
¹S_MW	0.157 ± 0.004	0.139 ± 0.004	0.135 ± 0.004	0.201 ± 0.005	0.142 ± 0.004
¹log R′_HK	-5.01	-5.16	-5.18	-4.80	-5.10
¹v sin i (km s^-1)	3.0	2.7	2.8	3.4	8.0
¹RV	−22.75 ± 0.13	9.20 ± 0.17	62.63 ± 0.12	23.03 ± 0.13	−14.78 ± 0.13
²Mass (M_*)	${1.01}_{- 0.04}^{+ 0.04}$ $Mathematical equation: $1.01^{+0.04}_{-0.04}$$	${0.94}_{- 0.04}^{+ 0.04}$ $Mathematical equation: $0.94^{+0.04}_{-0.04}$$	⁽³⁾ ${0.98}_{- 0.12}^{+ 0.12}$ $Mathematical equation: $0.98^{+0.12}_{-0.12}$$	${0.96}_{- 0.04}^{+ 0.04}$ $Mathematical equation: $0.96^{+0.04}_{-0.04}$$	${1.19}_{- 0.04}^{+ 0.04}$ $Mathematical equation: $1.19^{+0.04}_{-0.04}$$
⁴Distance (pc)	65.87 ± 0.11	82.30 ± 0.11	55.50 ± 0.06	36.39 ± 0.02	76.10 ± 0.13
⁵[Fe/H]	0.42±0.05	0.47±0.04	0.43±0.04	0.16±0.05	-0.12±0.10
⁵T_eff (K)	5980±51	5661±72	5680±56	5748±81	5978±300
⁵Age (Gyr)	${1.73}_{- 1.22}^{+ 1.14}$ $Mathematical equation: $1.73^{+1.14}_{-1.22}$$	${4.97}_{- 1.69}^{+ 2.87}$ $Mathematical equation: $4.97^{+2.87}_{-1.69}$$	${3.55}_{- 2.19}^{+ 2.48}$ $Mathematical equation: $3.55^{+2.48}_{-2.19}$$	${6.57}_{- 1.96}^{+ 3.00}$ $Mathematical equation: $6.57^{+3.00}_{-1.96}$$	${5.23}_{- 3.71}^{+ 3.12}$ $Mathematical equation: $5.23^{+3.12}_{-3.71}$$
Time baseline (yr)	14.80	16.98	24.83	17.01	20.82

Notes. (1) Perryman et al. (1997); (2) Kordopatis et al. (2023), (3) Feng et al. (2022), (4) Gaia Collaboration (2023), (5) This work with SPECIES Soto & Jenkins (2018).

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