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- W3040764327 abstract "This paper examines hydrodynamical phenomena arising from the gravitational interaction of cosmic strings with the surrounding gas. A straight string moving supersonically in a mixture of an ideal gas and blackbody radiation produces a wedge-shaped shock wave. The general relativistic jump conditions for such a shock are solved to first order in the parameter G (mu) for two limiting cases. In a hot gas tightly coupled to radiation, the wedge is very wide, but the temperature contrast produced is of order 0.00001. In pure hydrogen, a very narrow wake with a temperature of about 100-10,000 K forms behind the string. If small segments of an oscillating loop are able to heat the gas surrounding it by this mechanism, loops with their center of mass at rest in the fluid become sources of ionizing photons to form cosmological H II regions, while loops moving with high center-of-mass velocity produce a tail shock. The possible spectral distortions induced in the microwave background radiation by the above processes are estimated. They are below current observational limits. 38 references." @default.
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- W3040764327 date "1987-09-01" @default.
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- W3040764327 title "Cosmic String Shocks and Microwave Spectral Distortions" @default.
- W3040764327 hasPublicationYear "1987" @default.
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