Table 4.
Chemical inhomogeneity in binary systems with planets or debris disks.
| Name | Δ[Fe/H] [dex] | Planet | Teff [K] | M⋆ [M⊙] | Dilution? | Distance [au] | References |
|---|---|---|---|---|---|---|---|
| 16 Cyg A | +0.047 | – | 5830 | 1.05 | Consistent | 755 | 1, 2, 3 |
| B | 0 | 2.4 MJup | 5751 | 1.00 | |||
| XO-2 N | +0.054 | 0.6 MJup | ≈5300 | 0.97 | Consistent | 4600 | 4 |
| S | 0 | 0.3 + 1.4 MJup | ≈5300 | 0.98 | |||
| ζ1 Ret | +0.02 | – | 5710 | 0.96 | Consistent | 3713 | 5, 6 |
| ζ2 Ret | 0 | Debris disk | 5854 | 0.99 | |||
| WASP-94 A | +0.01 | 0.45 MJup | ≈6200 | 1.29 | Inconclusive | 2700 | 7, 8 |
| B | 0 | 0.62 MJup | ≈6100 | 1.24 | |||
| HD 133131 A | −0.03 | 1.43 + 0.63 MJup | ≈5800 | 0.95 | Inconclusive | 360 | 9 |
| B | 0 | 2.5 MJup | ≈5800 | 0.93 | |||
| HAT-P-4 A | +0.11 | 0.7 MJup | 6036 | 1.24 | Inconsistent | 28 446 | 10 |
| B | 0 | – | 6037 | 1.17 | |||
| HD 80606 | +0.013 | 4 MJup | ≈5600 | 1.03 | Inconsistent | 1200 | 11 |
| 80607 | 0 | – | ≈5500 | 1.00 |
Notes.Δ[Fe/H] is a difference in metallicity and MJup is the Jovian mass.
References. (1) Tucci Maia et al. (2014); (2) Plávalová & Solovaya (2013); (3) Ramírez et al. (2011); (4) Damasso et al. (2015); (5) Saffe et al. (2016); (6) Takeda et al. (2007); (7) Teske et al. (2016a); (8) Neveu-VanMalle et al. (2014); (9) Teske et al. (2016b); (10) Saffe et al. (2017); (11) Liu et al. (2018).
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