From planetesimals to planets: volatile molecules | Astronomy & Astrophysics (A&A)

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Table 2

Average molar abundance (with standard deviation) of atoms X in planets.

Models	Non-irradiated				Irradiated
planets	Icy/Ocean		Giant		Icy/Ocean		Giant
Ref. organics	With	Without	With	Without	With	Without	With	Without

O^ices/O^all^* (%)	46.3 ± 10	66 ± 13	41.5 ± 14	60 ± 18	38.5 ± 12.7	59 ± 14	29 ± 20	45 ± 30
C^ices/C^all^* (%)	29 ± 10	100 ± 6	22.7 ± 12	100 ± 12	14.4 ± 11.6	98 ± 26	7 ± 9	95 ± 42

C/O^** (ices)	0.31 ± 0.14		0.27 ± 0.12		0.17 ± 0.11		0.10 ± 0.09
C/O^** (all)	0.49 ± 0.08	0.21 ± 0.09	≈0.50 ± 0.11	0.16 ± 0.085	0.47 ± 0.054	0.10 ± 0.08	0.50 ± 0.12	0.051 ± 0.06

Notes.

^(*)

Average molar ratio of atoms X in ices relative to total atoms X in planets (X/X).

^(**)

The molar stellar value of C/O in our study is 0.5.

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