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.
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页数：4
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