A radio pulsar spinning at 716 Hz
A radio pulsar spinning at 716 Hz
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DOI：
10.1126/science.1123430
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发表时间：
2006-03-31
期刊：
影响因子：
56.9
通讯作者：
Camilo, F
中科院分区：
文献类型：
--
作者：
Hessels, JWT;Ransom, SM;Camilo, F
我们使用绿岸望远镜在球状星团Terzan 5中发现了一颗716赫兹的食双星系射电脉冲星。它是迄今为止发现的自转最快的中子星，打破了642赫兹的脉冲星B1937 + 21保持了24年的记录。由于其通量密度非常低且食分很高（约占轨道的40%），探测这颗脉冲星很困难，这表明存在自转更快的中子星。如果该脉冲星的质量小于太阳质量的两倍，那么其半径必然会受到自转速率的限制。
We have discovered a 716-hertz eclipsing binary radio pulsar in the globular cluster Terzan 5 using the Green Bank Telescope. It is the fastest spinning neutron star found to date, breaking the 24-year record held by the 642-hertz pulsar B1937+21. The difficulty in detecting this pulsar, because of its very low flux density and high eclipse fraction (similar to 40% of the orbit), suggests that even faster spinning neutron stars exist. If the pulsar has a mass less than twice the mass of the Sun, then its radius must be constrained by the spin rate to be