Wormholes, naked singularities and universes of ghost radiation

Abstract

Both the static and homogeneous metrics describing the spherically symmetric gravitational field of a crossflow of incoming and outgoing null dust streams are generalized for the case of the two-component ghost radiation. Static solutions represent either naked singularities or the wormholes recently found by Hayward. The critical value of the parameter separating the two possibilities is given. The wormhole is allowed to have positive mass. The homogeneous solutions are open universes.

5 pages, 10 figures, minor changes to match the published version

References in corpus (3)

• R=0 spacetimes and self-dual Lorentzian wormholes
• Wormholes supported by pure ghost radiation
• Black holes and traversible wormholes: a synthesis

Cited by in corpus (10)

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• Evolving Lorentzian wormholes supported by phantom matter and cosmological constant
• Global structure of the Zipoy-Voorhees-Weyl spacetime and the delta=2 Tomimatsu-Sato spacetime
• Friedmann branes with variable tension
• Exotic solutions in General Relativity: Traversable wormholes and 'warp drive' spacetimes
• Dynamical generation of wormholes with charged fluids in quadratic Palatini gravity
• Braneworld gravitational collapse from a radiative bulk
• Planck scale physics and topology change through an exactly solvable model
• Geometrodynamics in a spherically symmetric, static crossflow of null dust
• Minimally coupled scalar fields as imperfect fluids