Implications of Spontaneous Glitches in the Mass and Angular Momentum in Kerr Space-Time

Abstract

The outward-pointing principal null direction of the Schwarzschild Riemann tensor is null hypersurface-forming. If the Schwarzschild mass spontaneously jumps across one such hypersurface then the hypersurface is the history of an outgoing light-like shell. The outward-- pointing principal null direction of the Kerr Riemann tensor is asymptotically (in the neighbourhood of future null infinity) null hypersurface-forming. If the Kerr parameters of mass and angular momentum spontaneously jump across one such asymptotic hypersurface then the asymptotic hypersurface is shown to be the history of an outgoing light-like shell and a wire singularity-free spherical impulsive gravitational wave.

16 pages, TeX, no figures, accepted for publication in Phys. Rev. D

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• Some Physical Consequences of Abrupt Changes in the Multipole Moments of a Gravitating Body

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