Open AccessBianchi type-III, V and VI0 generalized ghost dark energy models with polytropic gas in Brans-Dicke theory of gravitation
Author(s) -
N. Sandhya Rani,
K. V. S. Sireesha,
V. U. M. Rao
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1344/1/012045
Subject(s) - physics , dark energy , scalar–tensor theory , polytropic process , brans–dicke theory , scalar field , mathematical physics , gravitation , scalar (mathematics) , type (biology) , classical mechanics , quantum mechanics , cosmology , geometry , ecology , mathematics , biology
This paper elaborates the homogeneous and anisotropic Bianchi type- III , V and VI 0 space times filled with matter and generalized ghost dark energy components in the framework of Brans-Dicke (Phys. Rev. 124, 925 1961) theory of gravitation. The behavior of generalized ghost dark energy for Bianchi type- III, V and VI 0 background is discussed. The solutions of the field equations obtained using following two assumptions: (i) shear scalar of the model is proportional expansion scalar, which leads to a relation between the metric, (ii) scalar field in the Brans-Dicke theory is a function of average scale factor of the models. We have further established a correspondence between the generalized ghost dark energy models with the polytropic gas dark energy model. We also reconstructed the potential and dynamics of the scalar field. We discuss some physical and geometrical properties of the obtained models which are found to be consistent with recent observation.