English

On a free of centrifugal acceleration spacetime

General Relativity and Quantum Cosmology 2015-12-18 v3 High Energy Physics - Theory

Abstract

A static spacetime with no centrifugal repulsion, previously studied by Dadhich, is investigate in this paper. The source of curvature is considered to be an anisotropic fluid with ρ=pr\rho = -p_{r} and constant angular pressures. The positive parameter from the line-element is interpreted as the invariant acceleration of a static observer. The timelike and null geodesics of the spacetime are examined. A regularized form of the metric is proposed, rendering it finite at the origin. The energy density of the fluid becomes finite and negative for any rr and all the pressures are positive throughout the spacetime. The Tolman-Komar energy W(r)W(r) is computed and proves to be smaller than that one calculated with the Dadhich metric.

Keywords

Cite

@article{arxiv.1303.7376,
  title  = {On a free of centrifugal acceleration spacetime},
  author = {Hristu Culetu},
  journal= {arXiv preprint arXiv:1303.7376},
  year   = {2015}
}

Comments

8 pages, title changed, new chapter added, no figures