Varying Alpha in Bianchi type-V universe

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• 作者：H. Farajollahi ; F. Tayebi
• 关键词：Bianchi V ; BSBM ; Fundamental constant variation ; Cosmology
• 刊名：Astrophysics and Space Science
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：359
• 期：1
• 全文大小：877 KB
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• 作者单位：H. Farajollahi (1) (2)
  F. Tayebi (1)
  
  1. Department of Physics, University of Guilan, Rasht, Iran
  2. School of Physics, University of New South Wales, Sydney, NSW, 2052, Australia
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy
  
• 出版者：Springer Netherlands
• ISSN：1572-946X

文摘

In this paper, based on the BSBM theory, we investigate the dynamics of a homogeneous and anisotropic Bianchi type-V (BV) cosmological model subject to variation of the fine structure constant. By performing stability analysis, the anisotropic cosmic attractors are obtained and the anisotropic parameters are studied. The outcome confirms that universe underwent both anisotropy and variation of fine structure constant in the past for an accelerating expansion. However, the result also shows that both anisotropy and fundamental constant variation exist at the present epoch and even become greater in the future. This is in contradiction with the current observational data and therefore the model is not satisfactory.