Straight cosmic strings in linearized R + R2 gravity.

Details Straight cosmic strings in linearized R + R2 gravity. Straight cosmic strings in linearized R + R2 gravity.

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992cqgra...9..159l&link_type=abstract

Classical Quantum Gravity, Vol. 9, No. 1, p. 159 - 171

Physics

9

Scientific paper

The gravitational field of a straight U(1)-gauge cosmic string is investigated within the linear approximation to the gravitational theories with Lagrangian densities. The metric of a straight infinitely thin string is obtained in closed form. The gravitational properties of this metric are explored. It is found that a short range gravitational force is exerted on a slowly moving test particle, a feature not present in general relativity. The deflection of a light ray travelling in a plane orthogonal to the string is also determined.

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