Dark energy cosmological models with general forms of scale factor

被引:28
|
作者
Mishra, B. [1 ]
Ray, Pratik P. [1 ]
Pacif, S. K. J. [2 ]
机构
[1] Birla Inst Technol & Sci Pilani, Dept Math, Hyderabad Campus, Hyderabad 500078, Andhra Pradesh, India
[2] Jamia Millia Islamia, Ctr Theoret Phys, New Delhi 110025, India
来源
EUROPEAN PHYSICAL JOURNAL PLUS | 2017年 / 132卷 / 10期
关键词
D O I
10.1140/epjp/i2017-11697-y
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this paper, we have constructed dark energy models in an anisotropic Bianchi-V space-time and studied the role of anisotropy in the evolution of dark energy. We have considered an anisotropic dark energy fluid with different pressure gradients along different spatial directions. In order to obtain a deterministic solution, we have considered three general forms of scale factor. The different forms of scale factors considered here produce time-varying deceleration parameters in all the cases that simulates the cosmic transition. The variable equation-of-state (EoS) parameter, skewness parameters for all the models are obtained and analyzed. The physical properties of the models are also discussed.
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页数:11
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