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- W2486989300 abstract "The Newman–Janis Ansatz was used first to obtain the stationary Kerr metric from the static Schwarzschild metric. Many works have been devoted to investigate the physical significance of this Ansatz, but no definite answer has been given so far. We show that this Ansatz can be applied in general to conformastatic vacuum metrics, and leads to stationary generalizations which, however, do not preserve the conformal symmetry. We investigate also the particular case when the seed solution is given by the Schwarzschild spacetime and show that the resulting rotating configuration does not correspond to a vacuum solution, even in the limiting case of slow rotation. In fact, it describes in general a relativistic fluid with anisotropic pressure and heat flux. This implies that the Newman–Janis Ansatz strongly depends on the choice of representation for the seed solution. We interpret this result as a further indication of its applicability limitations." @default.
- W2486989300 created "2016-08-23" @default.
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- W2486989300 date "2016-10-17" @default.
- W2486989300 modified "2023-10-04" @default.
- W2486989300 title "Newman–Janis Ansatz in conformastatic spacetimes" @default.
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- W2486989300 doi "https://doi.org/10.1007/s10714-016-2144-0" @default.
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