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 refine the parameters by combining our datasets. We also provide additional evidence against astronomical false positives. Due to the brightness of the host star, V = 10, HAT-P-14 is an attractive candidate for further characterisation observations. The planet has a high impact parameter, b = 0.907 +/- 0.004, 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, e = 0.095 +/- 0.011. The system geometry suggests that the planet narrowly fails to undergo a secondary eclipse. However, even a non-detection would tightly constrain the system parameters.
@article{arxiv.1009.3470,
title = {Independent discovery and refined parameters of the transiting exoplanet HAT-P-14b},
author = {E. K. Simpson and S. C. C. Barros and D. J. A. Brown and A. Collier Cameron and D. Pollacco and I. Skillen and H. C. Stempels and I. Boisse and F. Faedi and G. Hebrard and J. McCormac and P. Sorensen and R. A. Street and J. Bento and F. Bouchy and O. W. Butters and B. Enoch and C. A. Haswell and L. Hebb and S. Holmes and K. Horne and F. P. Keenan and T. A. Lister and G. R. M. Miller and V. Moulds and C. Moutou and A. J. Norton and N. Parley and A. Santerne and I. Todd and C. A. Watson and R. G. West and P. J. Wheatley},
journal= {arXiv preprint arXiv:1009.3470},
year = {2015}
}