%0 Generic %1 luger2017terrestrialsized %A Luger, Rodrigo %A Sestovic, Marko %A Kruse, Ethan %A Grimm, Simon L. %A Demory, Brice-Olivier %A Agol, Eric %A Bolmont, Emeline %A Fabrycky, Daniel %A Fernandes, Catarina S. %A Van Grootel, Valérie %A Burgasser, Adam %A Gillon, Michaël %A Ingalls, James G. %A Jehin, Emmanuël %A Raymond, Sean N. %A Selsis, Franck %A Triaud, Amaury H. M. J. %A Barclay, Thomas %A Barentsen, Geert %A Delrez, Laetitia %A de Wit, Julien %A Foreman-Mackey, Daniel %A Holdsworth, Daniel L. %A Leconte, Jérémy %A Lederer, Susan %A Turbet, Martin %A Almleaky, Yaseen %A Benkhaldoun, Zouhair %A Magain, Pierre %A Morris, Brett %A Heng, Kevin %A Queloz, Didier %D 2017 %K exoplanet mdwarf %T A terrestrial-sized exoplanet at the snow line of TRAPPIST-1 %U http://arxiv.org/abs/1703.04166 %X The TRAPPIST-1 system is the first transiting planet system found orbiting an ultra-cool dwarf star. At least seven planets similar to Earth in radius and in mass were previously found to transit this host star. Subsequently, TRAPPIST-1 was observed as part of the K2 mission and, with these new data, we report the measurement of an 18.764 d orbital period for the outermost planet, TRAPPIST-1h, which was unconstrained until now. This value matches our theoretical expectations based on Laplace relations and places TRAPPIST-1h as the seventh member of a complex chain, with three-body resonances linking every member. We find that TRAPPIST-1h has a radius of 0.715 Earth radii and an equilibrium temperature of 169 K, placing it at the snow line. We have also measured the rotational period of the star at 3.3 d and detected a number of flares consistent with an active, middle-aged, late M dwarf.

@misc{luger2017terrestrialsized, abstract = {The TRAPPIST-1 system is the first transiting planet system found orbiting an ultra-cool dwarf star. At least seven planets similar to Earth in radius and in mass were previously found to transit this host star. Subsequently, TRAPPIST-1 was observed as part of the K2 mission and, with these new data, we report the measurement of an 18.764 d orbital period for the outermost planet, TRAPPIST-1h, which was unconstrained until now. This value matches our theoretical expectations based on Laplace relations and places TRAPPIST-1h as the seventh member of a complex chain, with three-body resonances linking every member. We find that TRAPPIST-1h has a radius of 0.715 Earth radii and an equilibrium temperature of 169 K, placing it at the snow line. We have also measured the rotational period of the star at 3.3 d and detected a number of flares consistent with an active, middle-aged, late M dwarf.}, added-at = {2017-03-15T20:46:14.000+0100}, author = {Luger, Rodrigo and Sestovic, Marko and Kruse, Ethan and Grimm, Simon L. and Demory, Brice-Olivier and Agol, Eric and Bolmont, Emeline and Fabrycky, Daniel and Fernandes, Catarina S. and Van Grootel, Valérie and Burgasser, Adam and Gillon, Michaël and Ingalls, James G. and Jehin, Emmanuël and Raymond, Sean N. and Selsis, Franck and Triaud, Amaury H. M. J. and Barclay, Thomas and Barentsen, Geert and Delrez, Laetitia and de Wit, Julien and Foreman-Mackey, Daniel and Holdsworth, Daniel L. and Leconte, Jérémy and Lederer, Susan and Turbet, Martin and Almleaky, Yaseen and Benkhaldoun, Zouhair and Magain, Pierre and Morris, Brett and Heng, Kevin and Queloz, Didier}, biburl = {https://www.bibsonomy.org/bibtex/2292a00a02fd363c3a82916f07d2500fd/superjenwinters}, description = {A terrestrial-sized exoplanet at the snow line of TRAPPIST-1}, interhash = {5c054c07f2c9ddee00cb90be5cea6c8e}, intrahash = {292a00a02fd363c3a82916f07d2500fd}, keywords = {exoplanet mdwarf}, note = {cite arxiv:1703.04166Comment: 36 pages, 8 figure, 2 tables. Submitted to Nat. Astron. on 3/10/2017}, timestamp = {2017-03-15T20:46:14.000+0100}, title = {A terrestrial-sized exoplanet at the snow line of TRAPPIST-1}, url = {http://arxiv.org/abs/1703.04166}, year = 2017 }