Work

Solution for a local straight cosmic string in the braneworld gravity

Year: 2015

Type: article

Abstract: In this work we deal with the spacetime shaped by a straight cosmic string, emerging from local gauge theories, in the braneworld gravity context. We search for physical consequences of string features due to the modified gravitational scenario encoded in the projected gravitational equations. It is shown that cosmic strings in braneworld gravity may present significant differences when compared to the general relativity predictions, since its linear density is modified and the deficit angle produced by the cosmic string is attenuated. Furthermore, the existence of cosmic strings in that scenario requires a strong restriction to the braneworld tension: $$\lambda \ge 3 \times 10^{-17}$$ , in Planck units.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-015-3669-1

Authors: M. C. B. Abdalla, P. F. Carlesso, J. M. Hoff da Silva

Institution: Universidade Estadual Paulista (Unesp)

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico

Awards: G3647208954, G562793465