Toward a Complete Analysis of the Global Structure of Kerr-Newman Spacetime

Details Toward a Complete Analysis of the Global Structure of Kerr-Newman Spacetime Toward a Complete Analysis of the Global Structure of Kerr-Newman Spacetime

1997-06-02

arxiv.org/abs/gr-qc/9706003v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, Revtex

Scientific paper

An attempt is made to supplement Carter's partial investigation of the global structure of Kerr-Newman spacetime on the symmetry axis. Namely, the global structure of \theta = const. timelike submanifolds of Kerr-Newman metric starting from the symmetry axis all the way down to the equatorial plane are studied by introducing a new time coordinate slightly different from the usual Boyer-Lindquist time coordinate. It turns out that the maximal anaytic extension of \theta = \theta_0 (0 \leq \theta_0 < \pi/2) submanifolds is the same as that of the symmetry axis first studied by Carter whereas \theta = \pi/2 equatorial plane has the topology identical to that of the Reissner-Nordstrom spacetime. General applicability of this method to Kerr-Newman-type black hole solutions in other gravity theories is discussed as well.

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