HAT-P-31b,c: A Transiting, Eccentric, Hot Jupiter and a Long-period, Massive Third Body

@article{Kipping2011HATP31bcAT,
  title={HAT-P-31b,c: A Transiting, Eccentric, Hot Jupiter and a Long-period, Massive Third Body},
  author={David M. Kipping and Joel D. Hartman and G'asp'ar 'A. Bakos and Guillermo Torres and David W. Latham and Daniel Bayliss and L{\'a}szl{\'o} L. Kiss and Bun’ei Sato and Bence B'eky and G. Kov'acs and Samuel N. Quinn and Lars A. Buchhave and Jens Skorstensgaard Andersen and Geoffrey W. Marcy and Andrew W. Howard and Debra A. Fischer and John Asher Johnson and Robert W. Noyes and Dimitar D. Sasselov and Robert P. Stefanik and J'ozsef L'az'ar and Istv{\'a}n Papp and P'al S'ari and G{\'a}bor Fűr{\'e}sz},
  journal={The Astronomical Journal},
  year={2011},
  volume={142},
  pages={95}
}
We report the discovery of HAT-P-31b, a transiting exoplanet orbiting the V = 11.660 dwarf star GSC 2099-00908. HAT-P-31b is the first planet discovered with the Hungarian-made Automated Telescope (HAT) without any follow-up photometry, demonstrating the feasibility of a new mode of operation for the HATNet project. The 2.17 M_J , 1.1 R_J planet has a period of P_b = 5.0054 days and maintains an unusually high eccentricity of e_b = 0.2450 ± 0.0045, determined through Keck, FIbr-fed Echelle… Expand
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