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Table 8

Abundance differences for binary systems with similar components that host planetary companions.

System Planet Teff(A) ΔTeff(A–B) [Fe/H](A) Δ[Fe/H](A–B) Ref.
host K K
16 Cyg B 5745 62 ± 14 +0.10 −0.025 ± 0.009 1
16 Cyg B 5765 39 +0.05 0.00 ± 0.01 2
HD 80606/7 A 5700 0 +0.46 −0.01 ± 0.11 3
HD 80606/7 A 5419 35 +0.254  +0.002 ± 0.081 4
HD 99491/2 B 5502 547 +0.34 −0.02 ± 0.03 5
HD 99491/2 B 5650 400 +0.40  +0.04 ± 0.13 3
HD 99491/2 B 5557 654 +0.365  +0.076 ± 0.059 4
HD 20781/2 A 5774 518 -0.06  +0.05 ± 0.03 6
HAT-P-1 B 6047 72 +0.12 −0.01 ± 0.05 7
XO-2 B 5500 160 +0.47  +0.02 ± 0.03 8
HD 132563 B 6168 184 ± 12 -0.19  +0.012 ± 0.013 9

References. 1: Laws & Gonzalez (2001); 2: Takeda et al. (2005); 3: Heiter & Luck (2003); 4: Taylor (2005); 5: Valenti & Fischer (2005); 6: Sousa et al. (2008); 7: Bakos et al. (2007); 8: Burke et al. (2007); 9: Desidera et al. (2004).

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