Bounds for scalar waves on self-similar naked-singularity backgrounds

Details Bounds for scalar waves on self-similar naked-singularity backgrounds Bounds for scalar waves on self-similar naked-singularity backgrounds

2006-03-28

arxiv.org/abs/gr-qc/0603105v3

Class.Quant.Grav. 23 (2006) 4523-4538

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

16 pages, 1 figure. Published version

Scientific paper

10.1088/0264-9381/23/13/015

The stability of naked singularities in self-similar collapse is probed using scalar waves. It is shown that the multipoles of a minimally coupled massless scalar field propagating on a spherically symmetric self-similar background spacetime admitting a naked singularity maintain finite $L^2$ norm as they impinge on the Cauchy horizon. It is also shown that each multipole obeys a pointwise bound at the horizon, as does its locally observed energy density. $L^2$ and pointwise bounds are also obtained for the multipoles of a minimally coupled massive scalar wave packet.

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