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- Title
An invariant characterization of the quasi-spherical Szekeres dust models.
- Authors
Coley, A. A.; Layden, N.; McNutt, D. D.
- Abstract
The quasi-spherical Szekeres dust solutions are a generalization of the spherically symmetric Lemaitre–Tolman–Bondi dust models where the spherical shells of constant mass are non-concentric. The quasi-spherical Szekeres dust solutions can be considered as cosmological models and are potentially models for the formation of primordial black holes in the early universe. Any collapsing quasi-spherical Szekeres dust solution where an apparent horizon covers all shell-crossings that will occur can be considered as a model for the formation of a black hole. In this paper we will show that the apparent horizon can be detected by a Cartan invariant. We will show that particular Cartan invariants characterize properties of these solutions which have a physical interpretation such as: the expansion or contraction of spacetime itself, the relative movement of matter shells, shell-crossings and the appearance of necks and bellies.
- Subjects
HORIZON; DUST; BLACK holes
- Publication
General Relativity & Gravitation, 2019, Vol 51, Issue 12, p1
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-019-2647-6