Discovery of a binary millisecond pulsar in the globular cluster M4
作者： A. G. Lyne , J. D. Biggs , A. Brinklow , M. Ashworth , J. McKenna
DOI: 10.1038/332045A0
关键词: Astrophysics 、 Pulsar 、 Astronomy 、 Millisecond 、 Globular cluster 、 Binary star 、 Millisecond pulsar 、 Accretion (meteorology) 、 X-ray binary 、 Physics 、 Neutron star
摘要: We report the discovery of an 11-ms pulsar, PSR1620–26, in closest globular cluster, M4 (NGC6121). It is fifth millisecond pulsar to be found, and second a cluster. Unlike other cluster PSR1821 – 24 M28 (ref. 1), PSR1620 26 low-mass binary system. This provides strong support for formation mechanisms which old neutron star spun up periods by accretion during X-ray phase. The orbit's small eccentricity likely have significant implica-tions both age its surface magnetic field. conclude that pulsar's current companion is, fact, was responsible spin-up.
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