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.

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。

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An X-ray binary system has been formed, and the neutron star has made the crucial second step toward becoming a millisecond pulsar.

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。

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Thus it is that a neutron star in a binary star system gets to spend its retirement years as a millisecond radio pulsar.

ECONOMIST: The dizziest, giddiest stars