ArticleProceedings of the National Academy of Sciences of the United States of America2018
Atmospheric escape from the TRAPPIST-1 planets and implications for habitability.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Origins of life: the possible and the actual.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Two distinct current systems in the ionosphere of Mars.Nature communications · 2024Article
- The erosion of large primary atmospheres typically leaves behind substantial secondary atmospheres on temperate rocky planets.Nature communications · 2024Article
- Article
- Extreme energetic particle events by superflare-asssociated CMEs from solar-like stars.Science advances · 2022Article
- Occurrence rate of ultra-low frequency waves in the foreshock of Mercury increases with heliocentric distance.Nature communications · 2021Article
- When the Moon had a magnetosphere.Science advances · 2020Article
- Exoplanet secondary atmosphere loss and revival.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- A Review of Possible Planetary Atmospheres in the TRAPPIST-1 System.Space science reviews · 2020Review
- Modeling Repeated M Dwarf Flaring at an Earth-like Planet in the Habitable Zone: Atmospheric Effects for an Unmagnetized Planet.Astrobiology · 2019Article
- Atmospheric Beacons of Life from Exoplanets Around G and K Stars.Scientific reports · 2017Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The presence of an atmosphere over sufficiently long timescales is widely perceived as one of the most prominent criteria associated with planetary surface habitability. We address the crucial question of whether the seven Earth-sized planets transiting the recently discovered ultracool dwarf star TRAPPIST-1 are capable of retaining their atmospheres. To this effect, we carry out numerical simulations to characterize the stellar wind of TRAPPIST-1 and the atmospheric ion escape rates for all of the seven planets. We also estimate the escape rates analytically and demonstrate that they are in good agreement with the numerical results. We conclude that the outer planets of the TRAPPIST-1 system are capable of retaining their atmospheres over billion-year timescales. The consequences arising from our results are also explored in the context of abiogenesis, biodiversity, and searches for future exoplanets. In light of the many unknowns and assumptions involved, we recommend that these conclusions must be interpreted with due caution.
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