1. 贵州大学物理学院物理与天文系 贵阳 550025;2. 贵安超算中心 贵阳 550025
国家自然科学基金项目(11963002、U1631236), 中国科学院天文大科学研究中心FAST重大成果培育项目, 贵州大学培育项目(201911)资助
1. Department of Physics and Astronomy, Guizhou University, Guiyang 550025;2. Guian Supercomputing Center, Guiyang 550025;
随着500m口径球面射电望远镜(Five-hundred-meter Aperture Spherical radio Telescope, FAST)的投入使用, 脉冲星发现的数目激增, 对已知脉冲星物理参数的统计分析具有非常重要的研究意义. 通过分析脉冲星的空间位置、周期、表面磁场强度等相关物理参数, 研究脉冲星的总体性质. FAST在银盘附近也发现了大量脉冲星, 体现其探测能力的优势. 更新了脉冲星周期与周期变化率关系图, 目前已有57颗脉冲星越过经典``死亡线'', 其中5颗是FAST发现的. 最后对脉冲双星系统的物理参数进行统计分析, 脉冲双星系统朝着低偏心率、伴星质量减少的方向演化, 9颗位于``加速线''上方. FAST望远镜将使中国进入脉冲星发现的黄金时期, 会进一步推动脉冲星物理的快速发展.
Thanks to the excellent performance of FAST (Five-hundred-meter Aperture Spherical radio Telescope), the number of pulsars has increased rapidly. It is very important to analyze the physical parameters of known pulsars. The overall properties of pulsars are studied by analyzing the related physical parameters such as spatial position, period, surface magnetic flux density and so on. A large number of pulsars were detected by FAST near the galactic disk, which reflect the superiority of its detection ability. The diagram of the relationship between the period and the time derivative of period of pulsars has been updated. At present, 57 pulsars have crossed the classical ``death line'', and five were discovered by FAST. Finally, the physical parameters of the binary pulsar systems are statistically analyzed, the binary pulsar systems are evolving towards the direction of low eccentricity and the decrease mass of the companion star. Moreover, 9 are located above the ``spin-up line''. FAST is making China into the golden age of pulsar discovery, which will further promote the rapid development of pulsar physics.
尹德江,张立云.脉冲星物理参数的统计分析[J].天文学报,2023,(1):9. YIN De-jiang, ZHANG Li-yun. Statistical Analysis of Physical Parameters of Pulsars[J]. Acta Astronomica Sinica,2023,(1):9.复制