New perturbative solutions of the Kerr-Newman dilatonic black hole field equations

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.814· OSTI ID:439125

Casadio, R; Harms, B; Leblanc, Y ^[1]; Cox, P H ^[2]

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1. Department of Physics and Astronomy, The University of Alabama, Box 870324, Tuscaloosa, Alabama 35487-0324 (United States)
2. Department of Physics, Texas AM University--Kingsville, Kingsville, Texas 78363 (United States)

This work describes new perturbative solutions to the classical, four-dimensional Kerr-Newman dilaton black hole field equations. Our solutions do not require the black hole to be slowly rotating. The unperturbed solution is taken to be the ordinary Kerr solution and the perturbation parameter is effectively the square of the charge-to-mass ratio (Q/M){sup 2} of the Kerr-Newman black hole. The solutions show the expected conjugation (mirror) symmetry, which maps the small coupling sector to the strong coupling sector ({phi}{r_arrow}{minus}{phi}). We also calculate the gyromagnetic ratio of the black hole. {copyright} {ital 1997} {ital The American Physical Society}

• DOE Contract Number: FG05-84ER40141
• OSTI ID: 439125
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 2 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BLACK HOLES
COUPLING
FIELD EQUATIONS
GYROMAGNETIC RATIO
KERR METRIC
ROTATION