Possible measurement of quintessence and density parameter using strong gravitational lensing events

被引：36
|
作者：
Futamase, T [1 ]
Yoshida, S [1 ]
机构：
[1] Tohoku Univ, Inst Astron, Sendai, Miyagi 9808578, Japan
来源：
PROGRESS OF THEORETICAL PHYSICS | 2001年 / 105卷 / 05期
关键词：
D O I：
10.1143/PTP.105.887
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a possible method of measurement of the time variability of the vacuum energy using strong gravitational lensing events. As an example we take an Einstein cross lens HST 14176 + 5226 and demonstrate that the measurement of the velocity dispersion with an accuracy of +/- 5 km/sec may allow for the determination of the time dependence of the vacuum energy as well as the density parameter with an accuracy of order 0.1 if the lens model is fixed.
引用
收藏
页码：887 / 891
页数：5
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