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Table 5

For HD 209458b with a C/O = 3× and 6× solar value, maximum variations of abundances (in %) for each species for which the reduced scheme is designed.

Species C/O = 3⊙ C/O = 6⊙
H2O 1 × 102 (@1 × 10−1) 9 × 101 (@2 × 10−1)
CH4 4 × 105 (@1 × 10−1) 8 × 105 (@1 × 10−1)
CO 1 × 10−1 (@1 × 10−1) 2 × 10−1 (@1 × 10−1)
CO2 1 × 102 (@1 × 10−1) 9 × 101 (@2 × 10−1)
NH3 1 × 104 (@2 × 10−1) 1 × 104 (@2 × 10−1)
HCN 3 × 102 (@1 × 10−1) 1 × 102 (@1 × 10−1)

Notes. The pressure level (@level in mbar) where the maximum variation is reached is indicated in parentheses. These values are calculated within the regions probed by infrared observations ([0.1–1000] mbar).

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