New Agegraphic Dark Energy model in chameleon Brans-Dicke cosmology for different forms of the scale factor |
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Authors: | Antonio Pasqua Surajit Chattopadhyay |
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Affiliation: | 1. Department of Physics, University of Trieste, Via Valerio, 2, 34127, Trieste, Italy 2. Pailan College of Management and Technology, Bengal Pailan Park, Kolkata, 700 104, India
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Abstract: | In this work, we study the New Agegraphic Dark Energy (NADE) model (which contains the conformal time η as infrared cut-off) in the framework of Brans-Dicke cosmology with chameleon scalar field which is non-minimally coupled to the matter field. Considering interacting Dark Energy and Dark Matter (DM), we calculate some relevant cosmological parameters, i.e. the equation of state (EoS) parameter, the deceleration parameter q and the evolution of the energy density parameter $varOmega_{D}'$ for different forms of scale factors, i.e. the power-law, the emergent, the intermediate and the logamediate ones, which leads to different expressions of η. |
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