| 不同坐标下Vaidya时空中的测地线方程 |
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| 引用本文： | 潘冬娇,陈超伟,黎忠恒. 不同坐标下Vaidya时空中的测地线方程[J]. 湛江师范学院学报, 2003, 24(6): 25-27 |
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| 作者姓名： | 潘冬娇 陈超伟 黎忠恒 |
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| 作者单位： | 湛江师范学院,物理系,广东,湛江,524048 |
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| 摘 要： | 研究了动态球对称Vaidya时空的测地线方程和新坐标下的Vaidya时空背景的测地线方程,表明Vaidya时空的测地线方程在表观视界处出现奇点,而无法达到其事件视界处,而新坐标下的Vaidya时空的测地线方程可以达到比表观视界更远的事件视界处.所以,新坐标下的Vaidya时空的测地线方程比Vaidya时空的测地线方程优越.
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| 关 键 词： | Vaidya时空 测地线 表观视界 事件视界 |
| 文章编号： | 1006-4702(2003)06-0025-03 |
| 修稿时间： | 2003-06-05 |
The Geodesic Equations of Vaidya Space- time in Different Coordinates |
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| PAN Dong-jiao,CHEN Chao-wei,LI Zhong-heng. The Geodesic Equations of Vaidya Space- time in Different Coordinates[J]. Journal of Zhanjiang Normal College, 2003, 24(6): 25-27 |
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| Authors: | PAN Dong-jiao CHEN Chao-wei LI Zhong-heng |
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| Abstract: | This paper studies the geodesic equations of the dynamic spherical symmetry Vaidya space-time and Vaidya space-time background in the new coordinate. It makes clear that the geodesic eqations of Vaidya space-time appear singularities on the apparent horizon,but they can not reach the event horizon.The geodesic eqations of vaidya space-time in the new coordinate can reach the event horizon farther than the apparent horizon. Therefore, the geodesic eqations of Vaidya space-time in the new coordinate are superior to the geodesic eqations of Vaidya space-time. |
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| Keywords: | Vaidya space-time geodesic apparent horizon event horizon |
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