Stellar Parameters for Trappist-1

  title={Stellar Parameters for Trappist-1},
  author={Val{\'e}rie Van Grootel and Catarina Silva Fernandes and Micha{\"e}l Gillon and Emmanuel Jehin and Jean Manfroid and Richard Scuflaire and Adam J. Burgasser and Artem Burdanov and Laetitia Delrez and B-O. Demory and Julien de Wit and Didier Queloz and Amaury H. M. J. Triaud},
  journal={The Astrophysical Journal},
TRAPPIST-1 is an ultracool dwarf star transited by seven Earth-sized planets, for which thorough characterization of atmospheric properties, surface conditions encompassing habitability, and internal compositions is possible with current and next-generation telescopes. Accurate modeling of the star is essential to achieve this goal. We aim to obtain updated stellar parameters for TRAPPIST-1 based on new measurements and evolutionary models, compared to those used in discovery studies. We… 

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