Are cosmic strings gravitationally stable topological defects?

Details Are cosmic strings gravitationally stable topological defects? Are cosmic strings gravitationally stable topological defects?

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cqgra...6l.141g&link_type=abstract

Classical and Quantum Gravity (ISSN 0264-9381), vol. 6, Aug. 1, 1989, p. L141-L144.

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Computation

32

Cosmology, Einstein Equations, Gravitational Waves, String Theory, Computational Astrophysics, Galactic Evolution, Quantum Mechanics, Quasars, Shock Waves, Space-Time Functions

Scientific paper

A possible mechanism for the dissapearance of an open cosmic string into gravitational radiation is described. This involves the splitting of an infinite straight cosmic string into two pieces whose ends are traveling outward at the speed of light with the associated emission of a gravitational shock wave. This model can also be used to describe the following situations: (1) the development of a growing region of different string tension within a cosmic string, and (2) the creation of a cosmic string in an otherwise flat background.

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