Constraints on cosmological parameters from the analysis of the Cosmic Lens All Sky Survey radio-selected gravitational lens statistics

被引：116

作者：

Chae, KH ^{[1
]}

Biggs, AD

Blandford, RD

Browne, IWA

de Bruyn, AG

Fassnacht, CD

Helbig, P

Jackson, NJ

King, LJ

Koopmans, LVE

Mao, S

Marlow, DR

McKean, JP

Myers, ST

Norbury, M

Pearson, TJ

Phillips, PM

Readhead, ACS

Rusin, D

Sykes, CM

Wilkinson, PN

Xanthopoulos, E

York, T

机构：

[1] Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England

[2] CALTECH, Pasadena, CA 91125 USA

[3] Netherlands Fdn Res Astron, NL-7990 AA Dwingeloo, Netherlands

[4] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[5] Univ Bonn, D-53121 Bonn, Germany

[6] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[7] Natl Radio Astron Observ, Socorro, NM 87801 USA

[8] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.89.151301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive constraints on cosmological parameters and the properties of the lensing galaxies from gravitational lens statistics based on the final Cosmic Lens All Sky Survey data. For a flat universe with a classical cosmological constant, we find that the present matter fraction of the critical density is Omega(m)=0.31(-0.14)(+0.27) (68%)(-0.10)(+0.12) (syst). For a flat universe with a constant equation of state for dark energy w=p(x)(pressure)/rho(x)(energy density), we find w<-0.55(-0.11)(+0.18) (68%).

引用

页码：151301/1 / 151301/4

页数：4

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