6533b81ffe1ef96bd1278566
RESEARCH PRODUCT
Cosmic censorship conjecture in some matching spherical collapsing metrics
Juan Antonio Morales-lladosaRamon Lapiedrasubject
PhysicsGravitacióConjecture010308 nuclear & particles physicsStar (game theory)media_common.quotation_subjectCosmic censorship hypothesisNull (mathematics)Collapse (topology)FOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Astrophysics::Cosmology and Extragalactic AstrophysicsInfinity01 natural sciencesGeneral Relativity and Quantum CosmologyGeneral Relativity and Quantum CosmologySingularityRelativitat general (Física)0103 physical sciencesGravitational singularity010306 general physicsMathematical physicsmedia_commondescription
A physically plausible Lema{\^{\i}}tre-Tolman-Bondi collapse in the marginally bound case is considered. By "physically plausible" we mean that the corresponding metric is ${\cal C}^1$ matched at the collapsing star surface and further that its {\em intrinsic} energy is, as due, stationary and finite. It is proved for this Lema{\^{\i}}tre-Tolman-Bondi collapse, for some parameter values, that its intrinsic central singularity is globally naked, thus violating the cosmic censorship conjecture with, for each direction, one photon, or perhaps a pencil of photons, leaving the singularity and reaching the null infinity. Our result is discussed in relation to some other cases in the current literature on the subject in which some of the central singularities are globally naked too.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-03-27 |