比尔和他的团队使用一种被称为“活动镜”的光学仪器，这是一种在天文望远镜的种类中用来发现新出现的恒星和遥远星系的仪器。
Bille and his team work with an optical instrument called an active mirror—a device used in astronomical telescopes to spot newly emerging stars and far distant galaxies.
星系中心的位置被射流本身的光学耀斑所曲解。
The position of the galaxy center is misinterpreted by an optical flare of the jet itself.
这意味着当双星最后融合时，它们将离它们诞生的星系很远——如果这真的发生了，引力波就能在光学上得到确认，这真是个好消息。
That means when the two stars finally get around to merging, they could be far away from the galaxy of their birth — good news, as it happens, for optical confirmation.
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