Dilatonic, Chiral Cosmic Strings

Details Dilatonic, Chiral Cosmic Strings Dilatonic, Chiral Cosmic Strings

2004-11-25

arxiv.org/abs/gr-qc/0411120v2

PoS WC2004 (2004) 034

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 2 figures, to appear in Journal of High Energy Physics (Proceedings Section)

Scientific paper

In this work, we deal with the chiral string model for which the world-sheet current is null in the framework of a scalar-tensor gravity. Our main goal is to analyse the impact of such a current on the gravitational macroscopic effects. For the purpose of this analysis, we first study the gravitational properties of the spacetime generated by this string in the presence of a dilaton field. Then, we carry out an investigation of the mechanism of formation and evolution of wakes in this framework, showing the explicit contribution of the chirality to this effect.

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