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Table 8

Atmospheric mass-loss simulations.

Core radius Current age Evaporation t = 5 Gyr
(R) fatm(%) Mass loss rate (g s−1) time scale(a) Mass (M) Radius (R) fatm(%) Mass loss rate (g s−1)
Planet b

2.4 98.9 5.3 ×1011 >5 Gyr 56.7 8.9 98.8 1.6 ×1.610
5 50.4 5.3 ×1011 >5 Gyr 56.5 9.3 48.5 2.0 ×1.610
7 22.7 5.3 ×1011 >5 Gyr 56.4 9.5 19.6 2.2 ×1.610

Planet c

1 7.0 3.5 ×1012 96Myr 9.7 1.4 0.4 5.2 ×108
1.8 3.5 3.5 ×1012 27 Myr 10.3 1.8 0.0 0.0
2.5 1.5 3.5 ×1012 8 Myr 10.2 2.5 0.0 0.0

Notes. (a)The evaporation time scale is equal to the time required for losing half of the atmospheric mass.

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