New Black Hole Solutions in Brans-Dicke Theory of Gravity
arXiv:gr-qc/9811012 · doi:10.1103/PhysRevD.60.024001
Abstract
Existence check of non-trivial, stationary axisymmetric black hole solutions in Brans-Dicke theory of gravity in different direction from those of Penrose, Thorne and Dykla, and Hawking is performed. Namely, working directly with the known explicit spacetime solutions in Brans-Dicke theory, it is found that non-trivial Kerr-Newman-type black hole solutions different from general relativistic solutions could occur for the generic Brans-Dicke parameter values -5/2\leq ω<-3/2. Finally, issues like whether these new black holes carry scalar hair and can really arise in nature and if they can, what the associated physical implications would be are discussed carefully.
20 pages, no figure, Revtex, version to appear in Phys. Rev. D
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