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Astron. Astrophys. 358, 425-427 (2000)

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Research Note

The big bang as a higher-dimensional shock wave

P. S. Wesson 1, H. Liu 2 and S. S. Seahra 1

1 Astronomy Group, Department of Physics, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
2 Department of Physics, Dalian University of Technology, Dalian, 116023, P.R. China

Received 18 October 1999 / Accepted 22 December 1999


We give an exact solution of the five-dimensional field equations which describes a shock wave moving in time and the extra (Kaluza-Klein) coordinate. The matter in four-dimensional spacetime is a cosmology with good physical properties. The solution suggests to us that the 4D big bang was a 5D shock wave.

Key words: relativity – cosmology: cosmic microwave background – cosmology: theory – cosmology: early Universe

Send offprint requests to: P.S. Wesson
(e-mail: wesson@astro.uwaterloo.ca)

© European Southern Observatory (ESO) 2000

Online publication: June 8, 2000