Stability analysis and observational measurement in chameleonic generalised Brans-Dicke cosmology

被引：33

作者：

Farajollahi, Hossein ^{[1
]}

Salehi, Amin ^{[1
]}

机构：

[1] Univ Guilan, Dept Phys, Rasht, Iran

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2011年 / 07期

关键词：

dark energy theory; modified gravity; supernova type Ia - standard candles; HOLOGRAPHIC DARK ENERGY; PROBE WMAP OBSERVATIONS; MODIFIED GRAVITY; COSMIC ACCELERATION; POWER SPECTRUM; DATA RELEASE; CONSTRAINTS; QUINTESSENCE; CURVATURE; INFLATION;

D O I：

10.1088/1475-7516/2011/07/036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the dynamics of the chameleonic Generalised Brans-Dicke model in flat FRW cosmology. In a new approach, a framework to study stability and attractor solutions in the phase space for the model is developed by simultaneously best fitting the stability and model parameters with the observational data. The results show that for an accelerating universe the phantom crossing does not occur in the past and near future.

引用

页数：14

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