Structure formation in a nonlocally modified gravity model

被引:61
|
作者
Park, Sohyun [1 ,2 ]
Dodelson, Scott [2 ,3 ,4 ]
机构
[1] Univ Florida, Dept Phys, Gainesville, FL 32611 USA
[2] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA
[3] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA
[4] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA
来源
PHYSICAL REVIEW D | 2013年 / 87卷 / 02期
基金
美国国家科学基金会;
关键词
LAMBDA; COSMOLOGY; BACK;
D O I
10.1103/PhysRevD.87.024003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study a nonlocally modified gravity model proposed by Deser and Woodard [Phys. Rev. Lett. 99, 111301 (2007)] which gives an explanation for current cosmic acceleration. By deriving and solving the equations governing the evolution of the structure in the Universe, we show that this model predicts a pattern of growth that differs from standard general relativity (+ dark energy) at the 10%-30% level. These differences will be easily probed by the next generation of galaxy surveys, so the model should be tested shortly. DOI: 10.1103/PhysRevD.87.024003
引用
收藏
页数:7
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