Constraints on scalar-field dark energy from the Cosmic Lens All-Sky Survey gravitational lens statistics

被引：55

作者：

Chae, KH

Chen, G

Ratra, B

Lee, DW

机构：

[1] Sejong Univ, Dept Astron & Space Sci, Seoul 143747, South Korea

[2] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 607卷 / 02期

关键词：

cosmological parameters; cosmology : observations; gravitational lensing; large-scale structure of universe;

D O I：

10.1086/421907

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use the statistics of strong gravitational lensing based on Cosmic Lens All-Sky Survey (CLASS) data to constrain cosmological parameters in a spatially flat, inverse power-law potential energy density scalar-field dark energy cosmological model. The lensing-based constraints are consistent with, but weaker than, those derived from Type Ia supernova redshift-magnitude data, and mildly favor the Einstein cosmological constant limit of this dark energy model.

引用

页码：L71 / L74

页数：4

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