他们认为，一个已知的毫秒脉冲星与一个已知的X射线双星之间的这种相似性，为我们提示了这两类天体间长期未知的内在联系。
They suggest that these similarities between a known millisecond pulsar and a known X-ray binary provide the long-sought link between these types of objects.
科学家们指出，多数脉冲星是双星系统的一部分，自转速度不到20毫秒一周，但是大约30%的脉冲星没有任何伴星。
Most of the pulsars that spin faster than once per 20 milliseconds are part of a binary star system, but about 30% have no companions whatsoever, the scientists note.
射线双星就这样形成了，于是这颗中子星就向成为毫秒脉冲星迈出了关键的第二步。
An X-ray binary system has been formed, and the neutron star has made the crucial second step toward becoming a millisecond pulsar.
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