THE KEPLER-19 SYSTEM: A TRANSITING 2.2 R⊕ PLANET AND A SECOND PLANET DETECTED VIA TRANSIT TIMING VARIATIONS

@article{Ballard2011THEKS,
  title={THE KEPLER-19 SYSTEM: A TRANSITING 2.2 R⊕ PLANET AND A SECOND PLANET DETECTED VIA TRANSIT TIMING VARIATIONS},
  author={Sarah Ballard and Daniel C. Fabrycky and François Fressin and David Charbonneau and Jean-Michel D{\'e}sert and Guillermo Torres and Geoffrey W. Marcy and Christopher J. Burke and Howard T. Isaacson and Christopher E. Henze and Jason H. Steffen and David R. Ciardi and Steve B. Howell and William D. Cochran and Michael Endl and Stephen T. Bryson and Jason F. Rowe and Matthew J. Holman and Jack J. Lissauer and Jon M. Jenkins and Martin D. Still and Eric B. Ford and Jessie L. Christiansen and Christopher K. Middour and Michael R. Haas and J. Li and Jennifer R. Hall and Sean D. McCauliff and Natalie M. Batalha and David G. Koch and William J. Borucki},
  journal={The Astrophysical Journal},
  year={2011},
  volume={743}
}
We present the discovery of the Kepler-19 planetary system, which we first identified from a 9.3 day periodic transit signal in the Kepler photometry. From high-resolution spectroscopy of the star, we find a stellar effective temperature Teff = 5541 ± 60 K, a metallicity [Fe/H] = −0.13 ± 0.06, and a surface gravity log(g) = 4.59 ± 0.10. We combine the estimate of Teff and [Fe/H] with an estimate of the stellar density derived from the photometric light curve to deduce a stellar mass of M⋆ = 0… 

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