Free Access
Table 1
Model parameters of our three simulated planetary atmospheres, covering grid setup, run-lengths and planet constants.
| Quantity | Hot HD 209458 b | HD 209458 b | HD 189733 b |
|---|---|---|---|
| P–T profile name | Hot | Standard | Standard |
| Horizontal resolution (grid cells) | λ = 144, ϕ = 90 | λ = 144, ϕ = 90 | λ = 144, ϕ = 90 |
| Vertical resolution (levels) | 66 | 66 | 66 |
| Hydrodynamical timestep (s) | 30 | 30 | 30 |
| Radiative timestep (s) | 150 | 150 | 150 |
| Intrinsic temperature (K) | 100 | 100 | 100 |
| Initial inner boundary pressure (Pa) | 2.0 × 107 | 2.0 × 107 | 2.0 × 107 |
| Upper boundary height (m) | 1.0 × 107 | 9.0 × 106 | 3.2 × 106 |
| Diffusion coefficient K | 0.158 | 0.158 | 0.158 |
| Damping coefficient | 0.15 | 0.15 | 0.15 |
| Damping geometry | Linear(1) | Linear | Linear |
| Transient RT damping coefficient | 0.17 | 0.20 | 0.17 |
| Transient RT damping geometry | Parametric(2) | Parametric | Parametric |
| Transient RT transparent layers | 10 | 10 | 14 |
| Transient heating rate limit (K s−1) | 1.3 × 10−3 | 1.3 × 10−3 | 1.3 × 10−3 |
| Ideal gas constant, R (J kg−1 K−1) | 3556.8 | 3556.8 | 4593 |
| Specific heat capacity, cp (J kg−1 K−1) | 1.3 × 104 | 1.3 × 104 | 1.3 × 104 |
| Radius, Rp (m) | 9.00 × 107 | 9.00 × 107 | 8.05 × 107 |
| Rotation rate, Ω (s−1) | 2.06 × 10−5 | 2.06 × 10−5 | 3.28 × 10−5 |
| Surface gravity, gp (m s−2) | 10.79 | 10.79 | 22.49 |
| Semi-major axis, ap (au) | 4.75 × 10−2 | 4.75 × 10−2 | 3.14 × 10−2 |
| Run lengths (Earth days) | |||
| Cloud free | 800 | 1200 | 800 |
| Transparent cloud | 50 | 50 | 50 |
| Transient radiative cloud | 14 | 14 | 20 |
| Full radiative cloud | 36 | 36 | 30 |
| Total cloud | 100 | 100 | 100 |
| Total, tend | 900 | 1300 | 900 |
Notes. See (1) Mayne et al. (2014b) and (2) Drummond et al. (2018a) for more information.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.