Water photolysis, hydrogen escape, and oxygen buildup on the TRAPPIST-1 planets as predicted by VPLanet. Switch to branch BlackWhite for a black & white version.
| Date | 12/27/18 |
| Author | Rory Barnes |
| Modules | AtmEsc, STELLAR |
| Approx. runtime | 20 seconds |
| Source code | vplanet, vplot |
vplanet vpl.in
python makeplot.py <pdf | png>
Atmospheric evolution of the TRAPPIST-1 planets as modified by the evolving host star. Planetary parameters are from Grimm et al. (2018). Top Left: Bolometric stellar luminosity. Top Right: Stellar XUV luminosity. Middle Left: Stellar effective temperature. Middle Right: Habitable zone evolution. Dashed lines are the empirical limits and solid are the conservative limits (Kopparapu et al. 2013). Bottom Left: Surface/atmospheric water content in units of terrestrial oceans. Bottom Right: Oxygen buildup, assuming no sinks.