Independent discovery of the transiting exoplanet HAT-P-14b

Simpson, E. K.; Barros, S. C. C.; Brown, D. J. A.; Collier Cameron, A.; Pollacco, D.; Skillen, I.; Stempels, H. C.; Boisse, I.; Faedi, F.; Hébrard, G.; McCormac, J.; Sorensen, P.; Street, R. A.; Anderson, D.; Bento, J.; Bouchy, F.; Butters, O. W.; Enoch, B.; Haswell, C. A.; Hebb, L.; Hellier, C.; Holmes, S.; Horne, K.; Keenan, F. P.; Lister, T. A.; Maxted, P. F. L.; Miller, G. R. M.; Moulds, V.; Moutou, C.; Norton, A. J.; Parley, N.; Santerne, A.; Smalley, B.; Smith, A. M. S.; Todd, I.; Watson, C. A.; West, R. G. and Wheatley, P. J. (2011). Independent discovery of the transiting exoplanet HAT-P-14b. Astronomical Journal, 141(5), article no. 161.



We present SuperWASP observations of HAT-P-14b, a hot Jupiter discovered by Torres et al. The planet was found independently by the SuperWASP team and named WASP-27b after follow-up observations had secured the discovery, but prior to the publication by Torres et al. Our analysis of HAT-P-14/WASP-27 is in good agreement with the values found by Torres et al. and we provide additional evidence against astronomical false positives. Due to the brightness of the host star, V mag = 10, HAT-P-14b is an attractive candidate for further characterization observations. The planet has a high impact parameter and the primary transit is close to grazing. This could readily reveal small deviations in the orbital parameters indicating the presence of a third body in the system, which may be causing the small but significant orbital eccentricity. Our results suggest that the planet may undergo a grazing secondary eclipse. However, even a non-detection would tightly constrain the system parameters.

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