The regular cosmic string in Born-Infeld gravity

Details The regular cosmic string in Born-Infeld gravity The regular cosmic string in Born-Infeld gravity

2010-11-23

arxiv.org/abs/1011.5196v1

J.Phys.Conf.Ser.314:012114,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, submitted to Proceedings of Spanish Relativity Meeting 2010 (ERE2010, Granada, Spain)

Scientific paper

10.1088/1742-6596/314/1/012114

It is shown that Born-Infeld gravity --a high energy deformation of Einstein
gravity-- removes the singularities of a cosmic string. The respective vacuum
solution results to be free of conical singularity and closed timelike curves.
The space ends at a minimal circle where the curvature invariants vanish; but
this circle cannot be reached in a finite proper time.

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