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- W3099113121 abstract "A bstract The Janis-Newman-Winicour metric is a solution of Einstein’s gravity minimally coupled to a real massless scalar field. The γ -metric is instead a vacuum solution of Einstein’s gravity. Both spacetimes have no horizon and possess a naked singularity at a finite value of the radial coordinate, where curvature invariants diverge and the spacetimes are geodetically incomplete. In this paper, we reconsider these solutions in the framework of conformal gravity and we show that it is possible to solve the spacetime singularities with a suitable choice of the conformal factor. Now curvature invariants remain finite over the whole spacetime. Massive particles never reach the previous singular surface and massless particles can never do it with a finite value of their affine parameter. Our results support the conjecture according to which conformal gravity can fix the singularity problem that plagues Einstein’s gravity." @default.
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- W3099113121 date "2018-03-01" @default.
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- W3099113121 title "Unattainable extended spacetime regions in conformal gravity" @default.
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- W3099113121 doi "https://doi.org/10.1007/jhep03(2018)013" @default.
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