CM天体引力场中试验粒子测地线方程的后牛顿算法

J4 ›› 2009, Vol. 44 ›› Issue (11): 40-43.

CM天体引力场中试验粒子测地线方程的后牛顿算法

胡承忠宫衍香

泰山学院物理与电子工程学院, 山东泰安 271021

收稿日期:2009-04-17 出版日期:2009-11-16 发布日期:2009-11-25
作者简介:胡承忠(1964),男,副教授,主要从事理论物理学的教学与研究工作. Email:hcz64321@163.com
基金资助:
国家自然科学基金资助项目(10674099)

Using the Post-Newtonian approximation method to calculate the geodesic equationsof a test particle in the gravitational field of a CM celestial body

HU Cheng-Zhong, GONG Yan-Xiang

College of physics and electronic engineering, Taishan College, Taian 271021, Shandong, China

Received:2009-04-17 Online:2009-11-16 Published:2009-11-25

摘要/Abstract

摘要：

从后牛顿展开形式的度规张量出发,采用后牛顿近似方法讨论了具有磁荷和磁矩(CM)天体引力场中试验粒子的测地线方程,当略去磁矩和磁荷部分的影响时,方程回到Schwarzschild场的测地线方程。这套方程对于研究试验粒子轨道的长期演变对星系演化的影响有重要意义。

关键词: CM天体;测地线方程;后牛顿近似;试验粒子

Abstract:

The PostNewton approximation method is adopted to discuss the geodesic equations of a test particle in the gravitational field of a CM celestial body from the PostNewtonian metric tensor. When the parts of the magnetic charge and the magnetic moment are neglected, those equations transform into the equations obtained in the Schwarzschild gravitational field. Those equations have very important meanings in the research of the influence of longperiod orbital variation on the evolution of star galaxies.

Key words: CM celestial body; geodesic equations; postNewton approximation; test particle

中图分类号:

胡承忠宫衍香. CM天体引力场中试验粒子测地线方程的后牛顿算法[J]. J4, 2009, 44(11): 40-43.

HU Cheng-Zhong, GONG Yan-Xiang. Using the Post-Newtonian approximation method to calculate the geodesic equationsof a test particle in the gravitational field of a CM celestial body[J]. J4, 2009, 44(11): 40-43.

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