带宇宙常数爱因斯坦转盘的精确解(英文)  

The Exact Solution to Einstein's Disc with a Cosmological Constant

作　　者：周积梁[1] 李娟[1] 杨江河[1] 

机构地区：[1]广州大学天体物理中心,广州510006

出　　处：《湖南文理学院学报（自然科学版）》2006年第2期26-27,47,共3页Journal of Hunan University of Arts and Science(Science and Technology)

基　　金：国家973项目(NKBRSF G19990754);国家杰出青年基金(10125313);国家自然科学基金(10573005);广东省杰出人才基金(Q02114);广州市教育局重点学科及广州市科技局科研项目;湖南省教育厅科研项目(05C724).

摘　　要：计算了带宇宙常数项的爱因斯坦转盘问题,为了计算λ=0,ω=0,ω≠0情况下的度规,利用了Papapetron轴对称度规,计算结果展示宇宙常数项的爱因斯坦转盘的度规是λ与ω的耦合函数,并且当λ≠0,ω≠0时,转变到爱因斯坦转盘的度规,当λ=0,ω=0时转变到Minkowski度规。The Einstein＇s equations of gravitational field have been used to calculate the metric of Einstein＇s Disc with the existence of cosmological constant （λ≠ 0）, which changes the space-time structure. In order to calculate it, we used Papapetron axially symmetric metric. And we supposed λ≠ 0 and ω≠ 0.Our results show that it is coupling function of λ and ω that metric of Einstein＇s Disc with a Cosmological Constant, and the metric becomes the known Einstein＇s Disc metric when λ = 0,and becomes Minkowski metric when λ = 0 and ω = 0.

关 键 词：精确解 爱因斯坦转盘 宇宙常数 

分 类 号：P138.1[天文地球—天体力学]