Cosmological implications of DGP braneworld via well-known holographic dark energy models

被引:3
|
作者
Rani, Shamaila [1 ]
Jawad, Abdul [1 ]
机构
[1] COMSATS Inst Informat Technol, Dept Math, Lahore, Pakistan
来源
关键词
Cosmological parameters; holographic dark energy models; DGP braneworld; PROBE WMAP OBSERVATIONS; HUBBLE-SPACE-TELESCOPE; OBSERVATIONAL CONSTRAINTS; PHANTOM; CONSTANT; GRAVITY; WORLD;
D O I
10.1142/S0218271816501029
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The cosmological analysis is being studied in the present work in Dvali-Gabadadze-Porrati (DGP) braneworld scenario by taking various interacting modified holographic dark energy (HDE) models. We discuss the various cosmological parameters such as deceleration parameter, equation-of-state (EoS) parameter and squared speed of sound. It is found that the trajectories of deceleration parameter exhibit in accelerated phase of the universe for all models. The EoS parameter corresponds to various phases of cosmic acceleration like quintessence, vacuum, phantom and also exhibits consistency with observational data. The squared speed of sound also gives stability of models in the current scenario. The omega(theta)-omega'(theta). also gives consistent results with various observational schemes. The statefinders plane also exhibits the cosmic acceleration. It is interesting to remark here that some of our results shows consistency with observational data like WMAP+CMB+BAO+H-0+SNe.
引用
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页数:23
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