How far out must we go to get into the Hubble flow?

被引:3
|
作者
Tipler, FJ [1 ]
机构
[1] Tulane Univ, Dept Math, New Orleans, LA 70118 USA
[2] Tulane Univ, Dept Phys, New Orleans, LA 70118 USA
来源
ASTROPHYSICAL JOURNAL | 1999年 / 511卷 / 02期
关键词
cosmology : theory; distance scale; gravitational lensing; large-scale structure of universe; quasars : individual (B1422+231);
D O I
10.1086/306725
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The answer, we shall see, must be z equals 3-if the expansion is flat, matter-dominated, hence slow. I show that gravitational lenses are the best hope for definitely getting out into the Hubble flow and hence for measuring the true values of the cosmological parameters. The source of one known lens system, B1422 + 231, is definitely in the Hubble flow.
引用
收藏
页码:546 / 549
页数:4
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