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Keywords:

  • Exotic singularities;
  • inhomogeneous models;
  • dark energy.

Abstract

I describe an opportunity to mimic dark energy leading to a current acceleration of the universe by the application of the pressure singularities surrounding an observer. Two essentially different models are investigated. In the first one, the acceleration is due to an approach to a pressure singularity which appears on a constant time hypersurface. In the second one, the acceleration is due to the existence of the pressure singularities in some regions of space. Both models are tested positively against observations.