Higher-dimensional dust collapse in $f(R)$ gravity
نویسندگان
چکیده
منابع مشابه
Naked Singularities in Higher Dimensional Inhomogeneous Dust Collapse
We investigate the occurrence and nature of a naked singularity in the gravitational collapse of an inhomogeneous dust cloud described by a non self-similar higher dimensional Tolman spacetime. The necessary condition for the formation of a naked singularity or a black hole is obtained. The naked singularities are found to be gravitationally strong in the sense of Tipler and provide another exa...
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The Cosmic Censorship Conjecture (CCC)[1,2] states that the space-time singularity produced by gravitational collapse must be covered by the horizon. The CCC is yet one of the unresolved problem in General Relativity. In fact the conjecture has not yet any precise mathematical proof. However the singularity theorems as such do not state anything about the visibility of the singularity to an out...
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We investigate the occurrence and nature of a naked singularity in the gravitational collapse of an inhomogeneous dust cloud described by higher dimensional Tolman-Bondi space-times. The naked singularities are found to be gravitationally strong in the sense of Tipler. Higher dimensions seem to favour black holes rather than naked singularities.
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Spherically symmetric inhomogeneous dust collapse has been studied in higher dimensional spacetime and the factors responsible for the appearance of a naked singularity are analyzed in the region close to the centre for the marginally bound case. It is clearly demonstrated that in the former case naked singularities do not appear in the space-time having more than five dimension, which appears ...
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We extend previous work on radiating, spherically-symmetric sources such as stars in general relativity by analyzing a class of 5D Kaluza-Klein metrics which contains physically relevant 4D metrics. We present two exact solutions. This approach can be used to obtain 4D solutions from 10D superstrings, 11D supergravity and M-theory. PACS number(s): 04.20.Jb, 11.10 Kk Email: [email protected] Ema...
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ژورنال
عنوان ژورنال: TURKISH JOURNAL OF PHYSICS
سال: 2017
ISSN: 1300-0101,1303-6122
DOI: 10.3906/fiz-1609-7