Astrophysics and Space Science

, Volume 283, Issue 4, pp 537–542 | Cite as

Inhomogeneous Dark Radiation Dynamics on a de Sitter Brane

  • Rui Neves
  • Cenalo Vaz


Assuming spherical symmetry we analyse the dynamics of an inhomogeneous dark radiation vaccum on a Randall and Sundrum 3-braneworld. Under certain natural conditions we show that the effective Einstein equations on the brane form a closed system. On a de Sitter brane and for negative dark energy density we determine exact dynamical and inhomogeneous solutions which depend on the brane cosmological constant, on the dark radiation tidal charge and on its initial configuration. We also identify the conditions leading to the formation of a singularity or of regular bounces inside the dark radiation vaccum.


Black Hole Solution Weyl Tensor Brane World Germani Dark Radiation 
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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Rui Neves
    • 1
  • Cenalo Vaz
    • 1
  1. 1.Área Departamental de Física/CENTRA, FCTUniversidade do Algarve Campus de GambelasFaroPortugal

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