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
Boyajian, Tabetha; von Braun, Kaspar; Feiden, Gregory A; Huber, Daniel; Basu, Sarbani; Demarque, Pierre; Fischer, Debra A; Schaefer, Gail; Mann, Andrew W; White, Timothy R; Maestro, Vicente; Brewer, John; Lamell, C. Brooke; Spada, Federico; Lopez-Morales, Mercedes; Ireland, Michael; Farrington, Chris; van Belle, Gerard T; Kane, Stephen R; Jones, Jeremy; ten Brummelaar, Theo; Ciardi, David R; McAlister, Harold A; Ridgway, Stephen; Goldfinger, P. J; Turner, Nils H; Sturmann, Laszlo
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 limb-darkened 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...[Show more]
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|Source:||Monthly Notices of the Royal Astronomical Society|
|Boyajian et al Stellar Diameters and Temperatures 2015.pdf||631.31 kB||Adobe PDF|
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