Odd-parity perturbations of the self-similar LTB spacetime

Emily M Duffy, Brien C Nolan
2011 Classical and quantum gravity  
We consider the behaviour of odd-parity perturbations of those self-similar Lemaître-Tolman-Bondi spacetimes which admit a naked singularity. We find that a perturbation which evolves from initially regular data remains finite on the Cauchy horizon. Finiteness is demonstrated by considering the behaviour of suitable energy norms of the perturbation (and pointwise values of these quantities) on natural spacelike hypersurfaces. This result holds for a general choice of initial data and initial
more » ... a surface. Finally, we examine the perturbed Weyl scalars in order to provide a physical interpretation of our results. Taken on its own, this result does not support cosmic censorship; however a full perturbation of this spacetime would include even parity perturbations, so we cannot conclude that this spacetime is stable to all linear perturbations.
doi:10.1088/0264-9381/28/10/105020 fatcat:euhdbnephzgbrc5ofz2giq5ffa