Constraining the lattice fluid dark energy from SNe Ia, BAO and OHD

被引：6
|
作者：
Duan XiaoXian [1 ,2 ]
Li YiChao [1 ,2 ]
Gao ChangJun [1 ,3 ]
机构：
[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
来源：
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2013年 / 56卷 / 06期
基金：
中国国家自然科学基金;
关键词：
dark energy; lattice fluid; statefinder; HUBBLE-SPACE-TELESCOPE; DIGITAL SKY SURVEY; BARYON ACOUSTIC-OSCILLATIONS; PROBE WMAP OBSERVATIONS; COSMOLOGICAL-CONSTANT; MODIFIED GRAVITY; MODEL; QUINTESSENCE; SUPERNOVAE; CONSEQUENCES;
D O I：
10.1007/s11433-013-5080-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Sanchez and Lacombe have developed a lattice fluid theory based on a well-defined statistical mechanical model. Taking the lattice fluid as a candidate of dark energy, we investigate the cosmic evolution of this fluid. Using the combined observational data of Type Ia Supernova (SNe Ia) Union2.1, Baryon Acoustic Oscillations (BAO) data from 6dFGS, SDSS and WiggleZ survey, and Observational Hubble Data (OHD), we find the best fit value of the parameters: A = -0.3 +/- 0.2(1 sigma) +/- 0.4(2 sigma) +/- 0.8(3 sigma) and Omega (m) = 0.31 +/- 0.02(1 sigma) +/- 0.05(2 sigma) +/- 0.07(3 sigma). The cosmological implications of the model are presented.
引用
收藏
页码：1220 / 1226
页数：7
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