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arXiv 2104.08439astro-ph.HE
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毫秒脉冲星PSR J0621 +1002的单脉冲研究

A single pulse study of a millisecond pulsar PSR J0621+1002

S. Q. Wang, J. B. Wang, N. Wang, Y. Feng, S. B. Zhang, K. J. Lee, D. Li, J. G. Lu, J. T. Xie, D. J. Zhou, L. Zhang

摘要:

利用500米口径球面射电望远镜(FAST)对毫秒脉冲星PSR J0621+1002进行了射电观测。脉冲星的第一和第三脉冲分量都表现出周期性的脉冲强度调制。第一脉冲分量的波动谱具有3.0 $\pm$ 0.1脉冲周期的一个峰,而第三脉冲分量的波动谱具有3.0 $\pm$ 0.1和200 $\pm$ 1脉冲周期的两个扩散峰。对该脉冲星进行了单脉冲定时分析,根据拟合后的定时残差将单脉冲分为两类。我们研究了仅使用一类脉冲或亮脉冲可实现的定时精度。然而,定时精度的改善是不可实现的。

英文摘要:

We present radio observation of a millisecond pulsar PSR J0621+1002 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The pulsar shows periodic pulse intensity modulations for both the first and the third pulse components. The fluctuation spectrum of the first pulse component has one peak of 3.0$\pm$0.1 pulse periods, while that of the third pulse component has two diffused peaks of 3.0$\pm$0.1 and 200$\pm$1 pulse periods. The single pulse timing analysis is carried out for this pulsar and the single pulses can be divided into two classes based on the post-fit timing residuals. We examined the achievable timing precision using only the pulses in one class or bright pulses. However, the timing precision improvement is not achievable.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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