Stellar diameters and temperatures - VI. High angular resolution measurements of the transiting exoplanet host stars HD 189733 and HD 209458 and implications for models of cool dwarfs
@article{Boyajian2015StellarDA, title={Stellar diameters and temperatures - VI. High angular resolution measurements of the transiting exoplanet host stars HD 189733 and HD 209458 and implications for models of cool dwarfs}, author={T. Boyajian and K. V. Braun and G. Feiden and D. Huber and S. Basu and P. Demarque and D. Fischer and G. Schaefer and A. Mann and T. White and V. Maestro and J. Brewer and C. B. Lamell and F. Spada and M. L'opez-Morales and M. Ireland and C. Farrington and G. Belle and S. Kane and J. Jones and T. A. Brummelaar and D. Ciardi and H. Mcalister and S. Ridgway and P. J. Goldfinger and N. Turner and L. Sturmann}, journal={Monthly Notices of the Royal Astronomical Society}, year={2015}, volume={447}, pages={846-857} }
We present direct radii measurements of the well-known transiting exoplanet host stars HD 189733 and HD 209458 using the CHARA Array interferometer. We find the limbdarkened angular diameters to be θLD = 0.3848 ± 0.0055 and 0.2254 ± 0.0072 mas for HD 189733 and HD 209458, respectively. HD 189733 and HD 209458 are currently the only two transiting exoplanet systems where detection of the respective planetary companion’s orbital motion from high-resolution spectroscopy has revealed absolute… CONTINUE READING
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