Under the influence of the gravitational force of a black hole, the binary system of stars decayed.

在黑洞引力的影响下，双星系统衰变。

While the binary system's 51 minutes is quick, it is not the record when compared to other kinds of binaries.

虽然这个双星系统的51分钟很快，但与其他类型的双星系统相比，它并没有创造记录。

The binary system periodically brightens by a huge amount partly because the larger star is being pulled out of its normal shape by the white dwarf's gravity.

这个双星系统会周期性地变亮，亮度非常大。部分原因是较大的那颗恒星被那颗白矮星的引力拉扯出正常形状。