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- W3101304123 abstract "By integration of generalized BSBM and Brans-Dicke cosmological models, in this article, we investigate the theoretical framework of fine structure constant variation and current cosmic acceleration. We first develop a mathematical formalism to analyse the stability of the model. By employing observational data to constrain the model parameters, phase space is performed and the attractor solutions of the model are detected. We then examine the model against observational data such as observational Hubble parameter dataset and quasar absorption spectra. The results confirms current universe acceleration and also predicts fine structure constant variation. Furthermore, extrapolation of the best fitted model in high redshift ($z> 15$) illustrates a significantly larger variation of fine structure constant in earlier epoch of the universe." @default.
- W3101304123 created "2020-11-23" @default.
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- W3101304123 date "2012-11-05" @default.
- W3101304123 modified "2023-09-25" @default.
- W3101304123 title "Varying alpha and cosmic acceleration in Brans-Dicke-BSBM theory: stability analysis and observational tests" @default.
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- W3101304123 doi "https://doi.org/10.1088/1475-7516/2012/11/002" @default.
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