Looking for an extra dimension with tomographic cosmic shear

被引：48

作者：

Song, YS ^{[1
]}

机构：

[1] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.71.024026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The cosmic acceleration was discovered in one of the brane-based models. We are interested in discriminating this model from the dark energy by tomographic cosmic shear. Growth factors are different in the two models when one adjusts parameters to get nearly identical H(z). The two models could be distinguished with independent determinations of both geometrical factors and the growth factor. We introduce new parametrizations to separate the influence of geometry and the influence of growth on cosmic shear maps. We find that future observations will be able to distinguish between both models.

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页码：024026 / 1

页数：7

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