The collision and snapping of cosmic strings generating spherical impulsive gravitational waves

Details The collision and snapping of cosmic strings generating spherical impulsive gravitational waves The collision and snapping of cosmic strings generating spherical impulsive gravitational waves

2000-01-17

arxiv.org/abs/gr-qc/0001049v1

Class.Quant.Grav.17:1401-1413,2000

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 6 figures, To appear in Class. Quantum Grav

Scientific paper

10.1088/0264-9381/17/6/306

The Penrose method for constructing spherical impulsive gravitational waves is investigated in detail, including alternative spatial sections and an arbitrary cosmological constant. The resulting waves include those that are generated by a snapping cosmic string. The method is used to construct an explicit exact solution of Einstein's equations describing the collision of two nonaligned cosmic strings in a Minkowski background which snap at their point of collision.

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