A combined transmission spectrum of the Earth-sized exoplanets TRAPPIST-1 b and c
@article{Wit2016ACT, title={A combined transmission spectrum of the Earth-sized exoplanets TRAPPIST-1 b and c}, author={Julien de Wit and Hannah R. Wakeford and Micha{\"e}l Gillon and Nikole K. Lewis and Jeff A. Valenti and B-O. Demory and Adam J. Burgasser and Artem Y. Burdanov and Laetitia Delrez and Emmanuel Jehin and Susan M. Lederer and Didier Queloz and Amaury H. M. J. Triaud and Val{\'e}rie Van Grootel}, journal={Nature}, year={2016}, volume={537}, pages={69-72} }
Three Earth-sized exoplanets were recently discovered close to the habitable zone of the nearby ultracool dwarf star TRAPPIST-1 (ref. 3). The nature of these planets has yet to be determined, as their masses remain unmeasured and no observational constraint is available for the planetary population surrounding ultracool dwarfs, of which the TRAPPIST-1 planets are the first transiting example. Theoretical predictions span the entire atmospheric range, from depleted to extended hydrogen-dominated…
133 Citations
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Seven temperate Earth-sized exoplanets readily amenable for atmospheric studies transit the nearby ultracool dwarf star TRAPPIST-1 (refs 1,2). Their atmospheric regime is unknown and could range from…
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- Physics, Geology
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- Physics, GeologyProceedings of the National Academy of Sciences
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- 2018
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Do the TRAPPIST-1 Planets Have Hydrogen-rich Atmospheres?
- Physics, GeologyThe Astrophysical Journal
- 2020
Recently, transmission spectroscopy in the atmospheres of the TRAPPIST-1 planets revealed flat and featureless absorption spectra, which rule out cloud-free, hydrogen-dominated atmospheres.…
Polarization of Trappist-1 by the Transit of Its Planets
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- 2018
Being the first, and currently the only, multiple planet hosting dwarf star that is sufficiently cool to form condensate clouds in its atmosphere, Trappist-1 provides a unique opportunity to test the…
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Terrestrial solar system planets either have high mean molecular weight atmospheres, as with Venus, Mars, and Earth, or no atmosphere at all, as with Mercury. We do not have sufficient observational…
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