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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/028/02/0109-0115

    • Keywords

       

      Kerr-Newman metric; deSitter universe; electromagnetic fields

    • Abstract

       

      In addition to the Kerr-Newman metric with cosmological constant several other metrics are presented giving Kerr-Newman type solutions of Einstein-Maxwell field equations in the background of deSitter universe. The electromagnetic field in all the solutions is assumed to be source-free. A new metric of what may be termed as an electrovac rotating de-Sitter space-time—a space-time devoid of matter but containing source-free electromagnetic field and a null fluid with twisting rays—has been presented. In the absence of the electromagnetic field, our solutions reduce to those discussed by Vaidya.

    • Author Affiliations

       

      L K Patel1 Sharda S Koppar1 P V Bhatt1 2

      1. Department of Mathematics, Gujarat University, Ahmedabad - 380 009, India
      2. Department of Mathematics, Saurashtra University, Rajkot - 360 005, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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