اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدFundamental Parameters of the Exoplanet Host K Giant Star iota Draconis from the CHARA Array
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We measured the angular diameter of the exoplanet host star iota Dra with Georgia State Universitys Center for High Angular Resolution Astronomy (CHARA) Array interferometer, and, using the stars parallax and photometry from the literature, calculated its physical radius and effective temperature. We then combined our results with stellar oscillation frequencies from Zechmeister et al. (2008) and orbital elements from Kane et al. (2010) to determine the masses for the star and exoplanet. Our value for the central stars mass is 1.82 +/- 0.23 M_Sun, which means the exoplanets minimum mass is 12.6 +/- 1.1 M_Jupiter. Using our new effective temperature, we recalculated the habitable zone for the system, though it is well outside the star-planet separation.
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