GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star

  title={GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star},
  author={Kristine W. F. Lam and Szil{\'a}rd Csizmadia and Nicola Astudillo-Defru and Xavier Bonfils and Davide Gandolfi and Sebastiano Padovan and Massimiliano Esposito and Coel Hellier and Teruyuki Hirano and John H. Livingston and Felipe Murgas and Alexis M. S. Smith and Karen A. Collins and Savita Mathur and Rafael A. Garc{\'i}a and Steve B. Howell and Nuno C. Santos and Fei Dai and George R. Ricker and Roland K. Vanderspek and David W. Latham and Sara Seager and Joshua N. Winn and Jon M. Jenkins and Simon H. Albrecht and Jose M. Almenara and {\'E}tienne Artigau and Oscar Barrag{\'a}n and François Bouchy and Juan Cabrera and David Charbonneau and Priyanka Chaturvedi and Alexander Chaushev and Jessie L. Christiansen and William D. Cochran and Jos{\'e} R. De Meideiros and Xavier Delfosse and Rodrigo F. D{\'i}az and Ren{\'e} Doyon and Ph. Eigm{\"u}ller and Pedro Figueira and Thierry Forveille and Malcolm Fridlund and Guillaume Gaisn'e and Elisa Goffo and Iskra Georgieva and Sascha Grziwa and Eike Guenther and Artie P. Hatzes and Marshall C. Johnson and Petr Kab{\'a}th and Emil Knudstrup and Judith Korth and Pablo Lewin and Jack J. Lissauer and Christophe Lovis and Rafael Luque and Claudio Melo and Edward H. Morgan and Robert L. Morris and Michel Mayor and Norio Narita and Hannah L. M. Osborne and Enric Pall{\'e} and Francesco Pepe and Carina Persson and Samuel N. Quinn and Heike Rauer and Seth Redfield and Joshua E. Schlieder and Damien S{\'e}gransan and Luisa Maria Serrano and Jeffrey C. Smith and J{\'a}n {\vS}ubjak and Joseph D. Twicken and St{\'e}phane Udry and Vincent Van Eylen and Michael Vezie},
  pages={1271 - 1275}
Description A nearby iron-rich sub-Earth planet The mass and radius of an exoplanet determine its mean density, which provides information about the possible interior structure. Lam et al. have identified a planet on a 7.7-hour orbit around a nearby red dwarf star. The authors determined the planet’s radius from the transit, then used radial velocity observations to measure the mass. They found a sub-Earth–sized planet with a density almost equivalent to pure iron. Its high surface temperature… 

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