| 张阳光,司徒亨健,杨波,林文斌.脉冲星自旋对Rmer延迟修正项的影响[J].南华大学学报(自然科学版),2024,(2):60~65.[ZHANG Yangguang,SITU Hengjian,YANG Bo,LIN Wenbin.The Influence of Pulsar Spin on Rmer Delay[J].Journal of University of South China(Science and Technology),2024,(2):60~65.] |
| 脉冲星自旋对Rmer延迟修正项的影响 |
| The Influence of Pulsar Spin on Rmer Delay |
| 投稿时间：2024-01-05 |
| DOI：10.19431/j.cnki. 1673-0062.2024.02.008 |
| 中文关键词: 后牛顿近似 双星系统 脉冲星 时间模型 |
| 英文关键词:post-Newtonian approximation binary system pulsar timing model |
| 基金项目:国家自然科学基金项目(11973025;12303079);湖南省教育厅项目(22B0446) |
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| 中文摘要: |
| 在脉冲双星系统中,Rmer延迟修正项是指由于脉冲星的轨道运动,引起脉冲信号到达地球的时间变化。本文中考虑了包含自旋与轨道耦合作用下的二阶后牛顿运动方程,在此基础上推导了新的Rmer延迟修正表达式,并给出了自旋对Rmer延迟影响的量级分析。新的Rmer延迟修正考虑了脉冲星自旋对其轨道运动的影响,这为更高精度的脉冲射电天文观测和引力检验提供了理论基础。 |
| 英文摘要: |
| In pulsar binary systems, the Rmer delay correction refers to the variation in the time it takes for pulsar signals to reach Earth due to the orbital motion of the pulsar. This paper considers the second-order post-Newtonian equations of motion that include the coupling effects of spin and orbit. Based on this, it derives a new expression for the Rmer delay correction and provides a magnitude analysis of the impact of spin on the Rmer delay. The new Rmer delay correction takes into account the influence of the pulsar's spin on its orbital motion, providing a theoretical basis for more precise pulsar radio astronomical observations and tests of gravity. |
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