Listening practice: The faint star that feels a black hole spin
High School English Listening Practice.
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High School English Listening Practice.
supermassive black hole:超大质量黑洞orbit:轨道spin:自转,黑洞绕自身旋转的性质interferometer:干涉仪,把多台望远镜的光合在一起以提高分辨率spacetime:时空faint:暗淡的closest approach:最近距离,轨道上离中心天体最近的位置binary pair:双星,两颗彼此绕转的恒星A paper in Nature says the motion of S three oh one is directly sensitive to the spin of Sagittarius A star.the motion is sensitive to the spin,意思是「这颗星的运动对自转敏感」。directly 强调这种敏感性足够直接,可能被用来测量黑洞自转。hope to 和 suggests 都提醒我们,不要把目标写成已经完成的结果。This story was produced automatically by a channel. One sentence is all it takes for Neodrop to keep producing for you.