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Naked singularities and Seifert’s conjecture [PDF]
Physical Review D, 1999 It is shown that for a general nonstatic spherically symmetric metric of the Kerr-Schild class several energy-momentum complexes give the same energy distribution as in the Penrose prescription, obtained by Tod. This result is useful for investigating the Seifert conjecture for naked singularities.
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Gravitational deflection of massive body around naked singularity
Nuclear Physics BSpacetime singularity is not observed directly as it is covered by event horizon. Naked singularities may be formed due to gravitational collapse without an event horizon. Therefore, cosmic censorship conjecture entails advanced ascertainment.
Md Khalid Hossain +4 more
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ON OBSERVATIONAL PHENOMENA RELATED TO KERR SUPERSPINARS
Acta Polytechnica, 2014 We investigate possible signatures of a Kerr naked singularity (superspinar) in various observational phenomena. It has been shown that Kerr naked singularities (superspinars) have to be efficiently converted to a black hole due to accretion from ...
Zdenek Stuchlik, Jan Schee
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A Cylindrically Symmetric and Static Anisotropic Fluid Spacetime and the Naked Singularity
Advances in High Energy Physics, 2018 A cylindrically symmetric and static solution of Einstein’s field equations was presented. The spacetime is conformally flat and regular everywhere except on the symmetry axis where it possesses a naked curvature singularity.
Faizuddin Ahmed, Farook Rahaman
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Galileons and naked singularities
Physics Letters B, 2012 References and acknowledgements added, and corrections made to Figure ...
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CONFORMAL TRANSFORMATIONS NEAR NAKED SINGULARITIES: I [PDF]
Modern Physics Letters A, 2002 We show that the behaviour of the outgoing radial null geodesic congruence on the boundary of the trapped region (suitably defined as a four dimensional region) is related to the property of nakedness in spherical dust collapse. The argument involves a conformal transformation which justifies the difference in the Penrose diagrams in the naked and ...
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Molecular Oncology, EarlyView.The LINC01116 long noncoding RNA is induced by hypoxia and associated with poor prognosis and high recurrence rates in two cohorts of lung adenocarcinoma patients. Here, we demonstrate that besides its expression in cancer cells, LINC01116 is markedly expressed in lymphatic endothelial cells of the tumor stroma in which it participates in hypoxia ...
Marine Gautier‐Isola +12 more
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Does a primary hair have an impact on the naked singularity formation in hairy Vaidya spacetime?
Physics of Complex SystemsWe consider the gravitational collapse of Vaidya spacetime, which has been obtained using the gravitational decoupling method. In this paper, we are interested in whether a primary hair has any impact on the endstate of the gravitational collapse.
Виталий Дмитриевич Вертоградов
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Gravitational collapse in Rastall gravity
Physics Letters B, 2019 We study spherically symmetric gravitational collapse of a homogeneous perfect fluid in Rastall gravity. Considering a linear equation of state (EoS) for the fluid profiles, we examine the conditions under which the collapse scenario could end in a ...
A. H. Ziaie, H. Moradpour, S. Ghaffari
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Tidal forces in naked singularity backgrounds [PDF]
Physical Review D, 2015 The end stage of a gravitational collapse process can generically result in a black hole or a naked singularity. Here we undertake a comparative analysis of the nature of tidal forces in these backgrounds. The effect of such forces is generically exemplified by the Roche limit, which predicts the distance within which a celestial object disintegrates ...
Goel, Akash +3 more
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