鞍山雅思|天文学家首次探测到中等质量的黑洞

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Astronomers have detected the most massive merging of two black holes yet through the oldest and most distant gravitational waves to ever hit Earth. This collision created the first intermediate-mass black hole ever discovered, and it has a mass of 142 times that of our Sun.

借助抵达地球最古老、最遥远的引力波，天文学家发现了迄今最大规模的两黑洞合并事件。两黑洞相撞后，产生的黑洞质量约为太阳的142倍，这是人类首次发现中等质量的黑洞。

The “bang①” of energy created by this black hole merger and released through gravitational waves, or ripples② in the space-time continuum, equaled the energy of eight Suns. The gravitational waves were traced on Earth on May 21, 2019, by the dual③ detectors of Laser Interferometer Gravitational-wave Observatory in the US, as well as the Virgo gravitational-wave detector in Italy. The ripples took 7 billion years to travel across space to reach us on Earth. (CNN)

【注释】

① bang: [bæŋ] n. a quick burst of energy or activity 爆炸

② ripple: [ˈrɪpl] n. a small wave 涟漪

③ dual: [ˈdjuːəl] adj. having two parts or aspects 双的，二元的，双倍的

此次合并所产生的能量“爆炸”，相当于八个太阳，通过引力波（时空连续体中的涟漪）释放了出来。2019年5月21日，美国激光干涉引力波天文台的两台探测器及意大利的“处女座”引力波探测器，追踪到了引力波。这些涟漪经过了70亿年才穿越太空，抵达地球。

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