Singularities in the Kerr-Newman and charged $\delta =2$ Tomimatsu-Sato spacetimes endowed with negative mass

Abstract

The Kerr-Newman solution with negative mass is shown to develop a massless ring singularity off the symmetry axis. The singularity is located inside the region with closed timelike curves which has topology of a torus and lies outside the ergoregion. These characteristics are also shared by the charged Tomimatsu-Sato delta=2 solution with negative total mass to which in particular a simple form in terms of four polynomials is provided.

10 pages, 7 figures; hyperextreme case included, one reference added

References in corpus (5)

• Instability of the negative mass Schwarzschild naked singularity
• Constructive proof of the Kerr-Newman black hole uniqueness including the extreme case
• On the physical interpretation of the delta=2 Tomimatsu-Sato solution
• Stationary configurations of two extreme black holes obtainable from the Kinnersley-Chitre solution
• Singular sources in the Demianski-Newman spacetimes

Cited by in corpus (4)

• Calculation of multipole moments of axistationary electrovacuum spacetimes
• Stationary black diholes
• On non-disk geometry of r = 0 in Kerr-de Sitter and Kerr-Newman-de Sitter spacetimes
• Are known maximal extensions of the Kerr and Kerr-Newman spacetimes physically meaningful and analytic?