Naked singularity formation in generalized Vaidya space-time
- Authors: Vertogradov V.D.1
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Affiliations:
- Herzen Russian State Pedagogical University
- Issue: Vol 22, No 2 (2016)
- Pages: 220-223
- Section: Article
- URL: https://journals.rcsi.science/0202-2893/article/view/176029
- DOI: https://doi.org/10.1134/S020228931602016X
- ID: 176029
Cite item
Abstract
The gravitational collapse in generalized Vaidya space-time is considered. It is known that the end state of gravitational collapse, as to whether a black hole or a naked singularity is formed, depends on the mass function M(v, r). Here we give conditions for the mass function which correspond to the equation of the state P = αρ. where α ∈ (0, 1/3], and according to these conditions we obtain either a black hole or a naked singularity as the end state of gravitational collapse. We also give the conditions for the mass function under which the singularity is gravitationally strong. We present simple examples showing when the result of gravitational collapse is a naked singularity and when this singularity is strong.
About the authors
V. D. Vertogradov
Herzen Russian State Pedagogical University
Author for correspondence.
Email: vitalii.vertogradov@yandex.ru
Russian Federation, Moika 48, St. Petersburg, 191186