Temporal Evolution of the High-energy Irradiation and Water Content of TRAPPIST-1 Exoplanets
@article{VBourrier2017TemporalEO, title={Temporal Evolution of the High-energy Irradiation and Water Content of TRAPPIST-1 Exoplanets}, author={V.Bourrier and Julien de Wit and E.Bolmont and V.Stamenkovic and P.J.Wheatley and Adam J. Burgasser and L.Delrez and B.-O.Demory and D.Ehrenreich and M.Gillon and E.Jehin and J.Leconte and S.M.Lederer and N.Lewis and A.H.M.J.Triaud and Val{\'e}rie Van Grootel}, journal={The Astronomical Journal}, year={2017}, volume={154}, pages={121} }
The ultracool dwarf star TRAPPIST-1 hosts seven Earth-size transiting planets, some of which could harbor liquid water on their surfaces. Ultraviolet observations are essential to measuring their high-energy irradiation and searching for photodissociated water escaping from their putative atmospheres. Our new observations of the TRAPPIST-1 Lyα line during the transit of TRAPPIST-1c show an evolution of the star emission over three months, preventing us from assessing the presence of an extended…
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