Constraints on (Ωm, Ωλ) from strong lensing clusters

被引：0
|
作者：
Golse, G [1 ]
Kneib, JP [1 ]
Soucail, G [1 ]
机构：
[1] Astrophys Lab, F-31400 Toulouse, France
来源：
TRACING COSMIC EVOLUTION WITH GALAXY CLUSTERS, PROCEEDINGS | 2002年 / 268卷
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D O I：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We use three strong lensing clusters to constrain the cosmological parameters Omega(m) and Omega(lambda). Recent HST observations of galaxy clusters reveal a large number of multiple images, which are predicted to be at different redshifts. We showed in a previous work that if it is possible to measure spectroscopically the redshift of many multiple images then one can constrain (Omega(m), Omega(lambda)) through ratios of angular diameter distances independently of any external assumptions. Using three strong lensing clusters, our combined results lead to tight constraints.
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页码：377 / 378
页数：2
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