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主題: HAT-P-2b 系外行星跟母星亮度變化有關係 作者: peter 於 2017-02-16 08:45:26 https://www.sciencedaily.com/releases/2017/02/170214130545.htm
(https://images.sciencedaily.com/2017/02/170214130545_1_540x360.jpg) 400光年外 HAT-P-2 有顆質量木星 8倍 類木行星 NASA的Spitzer太空望遠鏡對HAT-P-2進行了超過350小時的觀測，發現恆星的亮度每隔87分鐘就會出現這樣微小的振盪。 似乎在跟行星的軌道頻率的倍數 有類似共振諧波， For the first time, astronomers have observed a star pulsing in response to its orbiting planet. The star, HAT-P-2, pictured, is one of the most massive exoplanets known today. The planet, named HAT-P-2b, tracks its star in a highly eccentric orbit, flying extremely close to and around the star, then hurtling far out before eventually circling back around. (https://images.sciencedaily.com/2017/02/170214130545_1_540x360.jpg) |