Cosmological constraints from type ia supernovae peculiar velocity measurements

被引：78

作者：

Gordon, C. ^{[1
]}

Land, K. ^{[1
]}

Slosar, A. ^{[1
]}

机构：

[1] DWB, Oxford Astrophys Phys, Oxford OX1 3RH, England

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.99.081301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We detect the correlated peculiar velocities of nearby type Ia supernovae (SNe), while highlighting an error in some of the literature. We find sigma(8)=0.79 +/- 0.22 from SNe, and examine the potential of this method to constrain cosmological parameters in the future. We demonstrate that a survey of 300 low-z SNe (such as the nearby SNfactory) will underestimate the errors on w by similar to 35% if the coherent peculiar velocities are not included.

引用

页数：4

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