Jenkins J M, Twicken J D, Batalha N M, et al. AJ, 2015, 150: 56
开普勒-47双星系统的宜居带The Habitable Zone of Kepler-47 Binary System
胡娟秀, 郭建坡, 何超琼, 仓荣琴
恒星有效温度, 数值法, 宜居带, 开普勒-47双星系统, 行星Stellar Effective Temperature, Numerical Method, Habitable Zone, Kepler-47 Binary System, Planet
《Astronomy and Astrophysics》, Vol.4 No.3, 2016-07-19
Provided that there are lives living on an exoplanet, it must be located in the habitable zone of its host star. Considering the effects of stellar effective temperature on habitable zone, we give the distance equations on the inside and the outside boundary of binary’s habitable zone. Using the numerical methods, we obtain the habitable zone of the Kepler-47 binary system. The average distances on the inside and the outside boundary are 0.77761 and 1.55287 AU, respectively. The distance of the Kepler-47 inner planet is too small to be within the habitable zone. The orbit of the Kepler-47 outer planet may be an ellipse. Its eccentricity is 0.411; its aphelion is within the habitable zone, and its perihelion is not within the habitable zone. In an orbital period, there are 237.837 - 239.056 days that the Kepler-47 outer planet is within the habitable zone and there are 64.102 - 65.321 days that it is not within the habitable zone.