K2-139 b: A low-mass warm Jupiter on a 29-d orbit transiting an active K0 V star

@article{Barragan2018K2139BA,
  title={K2-139 b: A low-mass warm Jupiter on a 29-d orbit transiting an active K0 V star},
  author={O. Barrag'an and D. Gandolfi and A. Smith and H. Deeg and M. Fridlund and C. Persson and P. Donati and M. Endl and S. Csizmadia and S. Grziwa and D. Nespral and A. Hatzes and W. Cochran and L. Fossati and S. S. Brems and J. Cabrera and F. Cusano and P. Eigmuller and C. Eiroa and A. Erikson and E. Guenther and J. Korth and D. Lorenzo-Oliveira and L. Mancini and M. Patzold and J. Prieto-arranz and H. Rauer and I. Rebollido and J. Saario and O. Zakhozhay},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2018},
  volume={475},
  pages={1765-1776}
}
  • O. Barrag'an, D. Gandolfi, +27 authors O. Zakhozhay
  • Published 2018
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We announce the discovery of K2-139 b (EPIC 218916923 b), a transiting warm-Jupiter (Teq = 547 ± 25 K) on a 29-d orbit around an active (log R'_HK = -4.46 ± 0.06) K0V star in K2 Campaign 7. We derive the system's parameters by combining the K2 photometry with ground-based follow-up observations. With a mass of 0.387_-0.075^+0.083 M_J and radius of 0.808_-0.033^+0.034 R_J, K2-139 b is one of the transiting warm Jupiters with the lowest mass known to date. The planetary mean density of 0.91_-0.20… CONTINUE READING
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