Assessing the Habitability of the TRAPPIST-1 System Using a 3D Climate Model
@article{Wolf2017AssessingTH, title={Assessing the Habitability of the TRAPPIST-1 System Using a 3D Climate Model}, author={Eric T. Wolf}, journal={arXiv: Earth and Planetary Astrophysics}, year={2017} }
The TRAPPIST-1 system provides an extraordinary opportunity to study multiple terrestrial extrasolar planets and their atmospheres. Here we use the National Center for Atmospheric Research Community Atmosphere Model version 4 to study the possible climate and habitability of the planets in the TRAPPIST-1 system. We assume ocean-covered worlds, with atmospheres comprised of N2, CO2, and H2O, and with orbital and geophysical properties defined from observation. Model results indicate that the…
131 Citations
Comparative Climates of the Trappist-1 Planetary System: Results from a Simple Climate-vegetation Model
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- Physics, GeologyThe Astrophysical Journal
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- Geology, PhysicsThe Planetary Science Journal
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The TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI) project was initiated to compare 3D climate models that are commonly used for predicting theoretical climates of habitable zone extrasolar…
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- Physics, GeologySpace science reviews
- 2020
It is shown that (i) Hubble Space Telescope transit observations, (ii) bulk density measurements comparison with H2-rich planets mass-radius relationships, (iii) atmospheric escape modelling, and (iv) gas accretion modelling altogether offer solid evidence against the presence of hydrogen-dominated—cloud-free and cloudy—atmospheres around TRAPPIST-1 planets.
Tidal heating and the habitability of the TRAPPIST-1 exoplanets
- Geology, PhysicsAstronomy & Astrophysics
- 2019
Context. New estimates of the masses and radii of the seven planets orbiting the ultracool M-dwarf TRAPPIST-1 star permit improved modelling of their compositions, heating by tidal dissipation, and…
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- Geology, Physics
- 2018
With seven planets, the TRAPPIST-1 system has the largest number of exoplanets discovered in a single system so far. The system is of astrobiological interest, because three of its planets orbit in…
O2- and CO-rich Atmospheres for Potentially Habitable Environments on TRAPPIST-1 Planets
- Physics, GeologyThe Astrophysical Journal
- 2020
Small exoplanets of nearby M-dwarf stars present the possibility of finding and characterizing habitable worlds within the next decade. TRAPPIST-1, an ultracool M-dwarf star, was recently found to…
Atmospheric escape from the TRAPPIST-1 planets and implications for habitability
- Physics, GeologyProceedings of the National Academy of Sciences
- 2017
The atmospheric escape rates numerically and analytically for the planets of the TRAPPIST-1 system are determined and it is shown that the outer planets are potentially likely to retain their atmospheres over billion-year timescales.
Effect of Vegetation on the Temperatures of TRAPPIST-1 Planets
- Physics, GeologyThe Astrophysical Journal
- 2020
TRAPPIST-1 is an ultra-cool dwarf hosting a system consisting of seven planets. While orbital properties, radii and masses of the planets are nowadays well constrained, one of the open fascinating…
TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI). Motivations and protocol
- Physics, Geology
- 2019
Abstract. Upcoming telescopes such as the James Webb Space Telescope (JWST), the European Extremely Large Telescope (E-ELT), the Thirty Meter Telescope (TMT) or the Giant Magellan Telescope (GMT) may…
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