Heavy-element-enriched atmospheres and where they are born

Open Access

Table B.1

Constrained initial planetary embryo semi-major axes, final semi-major axes (i.e. the planet’s position when it reaches its observed mass), C/O number ratios, and disc lifetimes for an α = 10⁻⁴ disc.

Planet	Region	Initial a_p (AU)	Final a_p (AU)	C/O (Number Ratio)	Disc Lifetime (Myr)
HD80606b	Inner	0.5_−0.08	0.2	0.22^+0.16	4.48^+3.06
	Outer	${2.3}_{- 1.58}^{+ 0.39}$ $\[2.3_{-1.58}^{+0.39}\]$	${0.39}_{- 0.19}^{+ 0.29}$ $\[0.39_{-0.19}^{+0.29}\]$	${0.12}_{- 0.02}^{+ 0.18}$ $\[0.12_{-0.02}^{+0.18}\]$	${5.56}_{- 0.99}^{+ 0.16}$ $\[5.56_{-0.99}^{+0.16}\]$

Kepler-419b	Inner	−	−	−	−
	Outer	${2.0}_{- 0.63}^{+ 0.68}$ $\[2.0_{-0.63}^{+0.68}\]$	${0.53}_{- 0.21}^{+ 0.53}$ $\[0.53_{-0.21}^{+0.53}\]$	0.042^+0.33	4.17^+7.12

WASP-8b	Inner	0.3^+0.12	0.2	0.24_−0.03	7.08_−2.29
	Outer	${2.2}_{- 0.13}^{+ 0.24}$ $\[2.2_{-0.13}^{+0.24}\]$	${0.88}_{- 0.07}^{+ 0.21}$ $\[0.88_{-0.07}^{+0.21}\]$	${0.11}_{- 0.02}^{+ 0.26}$ $\[0.11_{-0.02}^{+0.26}\]$	${3.52}_{- 0.18}^{+ 0.06}$ $\[3.52_{-0.18}^{+0.06}\]$

WASP-130b	Inner	${0.5}_{- 0.05}^{+ 0.04}$ $\[0.5_{-0.05}^{+0.04}\]$	0.2	0.32^+0.04	${1.18}_{- 0.03}^{+ 0.71}$ $\[1.18_{-0.03}^{+0.71}\]$
	Outer	${1.2}_{- 0.48}^{+ 0.48}$ $\[1.2_{-0.48}^{+0.48}\]$	0.2^+0.85	0.62_−0.57	3.3_−1.55

WASP-84b	Inner	${0.5}_{- 0.04}^{+ 0.07}$ $\[0.5_{-0.04}^{+0.07}\]$	0.2	0.2^−0.04	1.91^+0.11
	Outer	${1.4}_{- 0.14}^{+ 0.03}$ $\[1.4_{-0.14}^{+0.03}\]$	${0.94}_{- 0.44}^{+ 0.02}$ $\[0.94_{-0.44}^{+0.02}\]$	0.03^+0.01	1.13^+0.56

Notes. The final semi-major axis is defined as the planet’s position when it reaches its observed mass in the simulation. Shown are the values for the simulation that most closely matched the observed heavy element mass with the uncertainties corresponding to the range of these quantities within the constrained formation regions (all quantities are linearly interpolated between each simulation data point). There is no constrained inner formation region for Kepler-419b.

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