Study of cubic Galileon gravity using N-body simulations

被引：10

作者：

Zhang, Jiajun ^{[1
]}

Dinda, Bikash R. ^{[2
]}

Hossain, Md Wali ^{[3
]}

Sen, Anjan A. ^{[4
]}

Luo, Wentao ^{[5
]}

机构：

[1] Inst Basic Sci IBS, Ctr Theoret Phys Universe, Daejeon 34126, South Korea

[2] Tata Inst Fundamental Res, Dept Theoret Phys, Dr Homi Bhabha Rd, Mumbai 400005, Maharashtra, India

[3] Kyungpook Natl Univ, Ctr High Energy Phys, Daegu, South Korea

[4] Jamia Millia Islamia, Ctr Theoret Phys, New Delhi 110025, India

[5] Univ Tokyo, WPI, Kavli Inst Phys & Math Universe Kavli IPMU, Chiba 2778582, Japan

来源：

PHYSICAL REVIEW D | 2020年 / 102卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

INITIAL CONDITIONS; DARK ENERGY; COSMOLOGY; DYNAMICS; UNIVERSE; LAMBDA; SPACE; VOIDS;

D O I：

10.1103/PhysRevD.102.043510

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use N-body simulation to study the structure formation in the cubic Galileon gravity model where along with the usual kinetic and potential term we also have a higher derivative self-interaction term. We find that the large scale structure provides a unique constraining power for this model. The matter power spectrum, halo mass function, galaxy-galaxy weak lensing signal, marked density power spectrum as well as count in cell are measured. The simulations show that there are less massive halos in the cubic Galileon gravity model than corresponding ACDM model and the marked density power spectrum in these two models are different by more than 10%. Furthermore, the cubic Galileon model shows significant differences in voids compared to ACDM. The number of low density cells is far higher in the cubic Galileon model than that in the ACDM model. Therefore, it would be interesting to put constraints on this model using future large scale structure observations, especially in void regions.

引用

页数：17

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