Table 2
Orbital solutions for the eight host stars.
| Parameter | Unit | HD 6718 | HD 8535 | HD 28254 | HD 290327 | ||||||||
|
|
|||||||||||||
| P | (d) | 2496 | ± | 176 | 1313 | ± | 28 | 1116 | ± | 26 | 2443 |
||
| T | (JDa) | 357 | ± | 251 | 537 | ± | 92 | 49 |
1326 |
||||
| e | 0.10 |
0.15 |
0.81 |
0.08 |
|||||||||
| γ | (km s-1) | 34.7509 | ± | 0.0013 | 2.4588 | ± | 0.0008 | − 9.315b | ± | 0.002 | 29.559 | ± | 0.003 |
| ω | (deg) | 286 |
61 |
301 |
268 |
||||||||
| K1 | (m s-1) | 24.1 | ± | 1.5 | 11.8 | ± | 0.8 | 37.3 |
41.3 | ± | 2.9 | ||
| Slope | (m s-1 yr-1) | ... | ... | 2.629 | ± | 0.015 | ... | ||||||
| Curvature | (m s-1 yr-2) | ... | ... | − 0.9290 | ± | 0.00012 | ... | ||||||
| f(m) | (10-9M⊙) | 3.56 |
0.22 |
1.22 |
17.6 |
||||||||
| a1sini | (10-3AU) | 5.50 |
1.41 |
2.25 |
9.24 |
||||||||
|
|
|||||||||||||
| m2sini | (MJup) | 1.56 |
0.68 |
1.16 |
2.54 |
||||||||
| a | (AU) | 3.56 |
2.45 |
2.15 |
3.43 |
||||||||
|
|
|||||||||||||
| Nmes | 22 | 45 | 32 | 18 | |||||||||
| Med(texp) | (s) | 158 | 106 | 60 | 173 | ||||||||
| ⟨ S / N ⟩ | 52 | 58 | 51 | 45 | |||||||||
| ⟨ ϵRV ⟩ | (m s-1) | 1.59 | 1.57 | 1.34 | 1.73 | ||||||||
| Span | (d) | 2028 | 2220 | 1989 | 1986 | ||||||||
| σ O − C | (m s-1) | 1.79 | 2.49 | 2.19 | 1.60 | ||||||||
|
1.50 | 2.48 | 3.08 | 1.22 | |||||||||
|
|
|||||||||||||
| Parameter | Unit | HD 43197 | HD 44219 | HD 148156 | HD 156411 | ||||||||
|
|
|||||||||||||
| P | (d) | 327.8 | ± | 1.2 | 472.3 |
1027 | ± | 28 | 842.2 | ± | 14.5 | ||
| T | (JDa) | 713.8 | ± | 1.7 | 585.6 |
707 | ± | 20 | 356 |
||||
| e | 0.83 |
0.61 |
0.52 |
0.22 | ± | 0.08 | |||||||
| γ | (km s-1) | 72.512 |
− 12.0732c | ± | 0.0026 | − 1.7480 |
− 38.7512 | ± | 0.0011 | ||||
| ω | (deg) | 251 |
147.4 |
35 |
45 |
||||||||
| K1 | (m s-1) | 32.4 |
19.4 | ± | 3.0 | 17.5 |
14.0 | ± | 0.8 | ||||
| Slope | (m s-1 yr-1) | ... | − 0.637 | ± | 0.016 | ... | ... | ||||||
| Curvature | (m s-1 yr-2) | ... | − 0.76390 | ± | 0.000 | ... | ... | ||||||
| f(m) | (10-9 M⊙) | 0.21 |
0.17 |
0.35 |
0.23 |
||||||||
| a1sini | (10-3 AU) | 0.55 |
0.66 |
1.41 |
1.06 |
||||||||
|
|
|||||||||||||
| m2sini | (MJup) | 0.60 |
0.58 |
0.85 |
0.74 |
||||||||
| a | (AU) | 0.92 |
1.19 | ± | 0.02 | 2.45 |
1.88 |
||||||
|
|
|||||||||||||
| Nmes | 33 | 46 | 42 | 50 | |||||||||
| Med(texp) | (s) | 171 | 63 | 92 | 90 | ||||||||
| ⟨ S/N ⟩ | 48 | 51 | 56 | 73 | |||||||||
| ⟨ ϵRV ⟩ | (m s-1) | 1.42 | 1.55 | 2.24 | 1.26 | ||||||||
| Span | (d) | 1943 | 1988 | 2168 | 2231 | ||||||||
| σ O − C | (m s-1) | 1.44 | 2.39 | 3.69 | 2.94 | ||||||||
|
|
1.19 | 2.62 | 2.89 | 5.21 | |||||||||
Notes. Errobars are Monte-Carlo based 1σ uncertainties. ⟨ ϵRV ⟩ is the radial-velocity uncertainty weighted average. σO − C is the weighted rms of the residuals to the fitted orbits. Med(texp) is the median exposure time and ⟨ S / N ⟩ is the average signal-to-noise ratio at 550 nm.(a) JD = BJD − 2 454 000; (b) at BJD =2 454 106.6; (c) at BJD =2 454 512.6.
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