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arXiv · gr-qc/9806016

Gravitational waves in a stringlike fluid cosmology

J. C. Fabris·S. V. B. Goncalves
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Abstract

The coupling of a stringlike fluid with ordinary matter and gravity may lead to a closed Universe with the dynamic of an open one. This can provide an alternative solution for the age and horizon problems. A study of density perturbations of the stringlike fluid indicates the existence of instabilities in the small wavelength limit when it is employed a hydrodynamic approach. Here, we extend this study to gravitational waves, where the hydrodynamical approach plays a less important role, and we argue that traces of the existence of this fluid must be present in the anisotropies of the cosmic background radiation.

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J. C. Fabris, S. V. B. Goncalves. 1998-06-03. Gravitational waves in a stringlike fluid cosmology. https://doi.org/10.1046/j.1365-8711.1999.02554.x

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