中文
相关论文

相关论文: Higher dimensional inhomogeneous dust collapse and…

200 篇论文

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-time. The naked singularities are found to be gravitationally…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Ujjal Debnath , Subenoy Chakraborty

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…

广义相对论与量子宇宙学 · 物理学 2009-10-31 S G Ghosh , A Beesham

We investigate the occurrence and nature of a naked singularity in the gravitational collapse of an inhomogeneous dust cloud described by a self-similar higher dimensional Tolman-Bondi space-time. Bound, marginally bound and unbound…

广义相对论与量子宇宙学 · 物理学 2009-11-07 S. G. Ghosh , A. Banerjee

We investigate the end state of the gravitational collapse of an inhomogeneous dust cloud in higher dimensional space-time. The naked singularities are shown to be developing as the final outcome of non-marginally bound collapse. The naked…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Ujjal Debnath , Subenoy Chakraborty

We investigate the occurrence and nature of naked singularity for the inhomogeneous gravitational collapse of Tolman-Bondi dust clouds.It is shown that the naked singularities form at the center of the collapsing cloud in a wide class of…

广义相对论与量子宇宙学 · 物理学 2009-10-22 P. S. Joshi , I. H. Dwivedi

Spherically symmetric inhomogeneous dust collapse has been studied in higher dimensional space-time and appearance of naked singularity has been analyzed both for non-marginal and marginally bound cases. It has been shown that naked…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Ujjal Debnath , Subenoy Chakraborty

Spherically symmetric inhomogeneous dust collapse has been studied in higher dimensional space-time and the factors responsible for the appearance of a naked singularity are analyzed in the region close to the centre for the marginally…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Asit Banerjee , Ujjal Debnath , Subenoy Chakraborty

We study the occurrence of naked singularities in the spherically symmetric collapse of radiation shells in a higher dimensional spacetime. The necessary conditions for the formation of a naked singularity or a black hole are obtained. The…

广义相对论与量子宇宙学 · 物理学 2008-11-26 S. G. Ghosh , R. V. Saraykar

We consider here the question if it is possible to recover cosmic censorship when a transition is made to higher dimensional spacetimes, by studying the spherically symmetric dust collapse in an arbitrary higher spacetime dimension. It is…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Rituparno Goswami , Pankaj S Joshi

The general solution of the Einstein equation for higher dimensional (HD) spherically symmetric collapse of inhomogeneous dust in presence of a cosmological term, i.e., exact interior solutions of the Einstein field equations is presented…

广义相对论与量子宇宙学 · 物理学 2011-07-19 S. G. Ghosh , D. W. Deshkar

We investigate the occurrence and nature of naked singularities in the gravitational collapse of an adiabatic perfect fluid in self-similar higher dimensional space-times. It is shown that strong curvature naked singularities could occur if…

广义相对论与量子宇宙学 · 物理学 2009-11-10 S. G. Ghosh , D. W. Deshkar

We study the occurrence and nature of naked singularities for a dust model with non-zero cosmological constant in ($n+2$)-dimensional Szekeres space-times (which possess no Killing vectors) for $n\geq 2$. We find that central shell-focusing…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Ujjal Debnath , Subenoy Chakraborty , John D. Barrow

We investigate the occurrence and nature of naked singularities in the gravitational collapse of a self-similar adiabatic perfect fluid in a five dimensional space-time. The naked singularities are found to be gravitationally strong in the…

广义相对论与量子宇宙学 · 物理学 2015-06-23 S G Ghosh , S B Sarwe , R V Saraykar

We investigate the end state of gravitational collapse of null fluid in higher dimensional space-times. Both naked singularities and black holes are shown to be developing as final outcome of the collapse. The naked singularity spectrum in…

广义相对论与量子宇宙学 · 物理学 2009-11-07 S. G. Ghosh , Naresh Dadhich

We will describe here the structure of singularity forming in gravitational collapse of spherically symmetric inhomogeneous dust. Such a collapse is described by the Tolman-Bondi-Lema{\^i}tre metric. The main new result here relates, in a…

广义相对论与量子宇宙学 · 物理学 2007-05-23 S. Jhingan

We study gravitational collapse of a spherically symmetric inhomogeneous dust cloud in the Lovelock theory without cosmological constant. We show that the final fate of gravitational collapse in this theory depends on the spacetime…

广义相对论与量子宇宙学 · 物理学 2011-08-08 Seiju Ohashi , Tetsuya Shiromizu , Sanjay Jhingan

We show that the naked singularities arising in dust collapse from smooth initial data (which include those discovered by Eardley and Smarr, Christodoulou, and Newman) are removed when we make transition to higher dimensional spacetimes.…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Rituparno Goswami , Pankaj S Joshi

We study here the structure of singularity forming in gravitational collapse of spherically symmetric inhomogeneous dust. Such a collapse is described by the Tolman-Bondi-Lema{\^i}tre metric, which is a two-parameter family of solutions to…

广义相对论与量子宇宙学 · 物理学 2007-05-23 S. Jhingan , P. S. Joshi

We consider a Lemaitre - Tolman - Bondi type space-time in Einstein gravity with the Gauss-Bonnet combination of quadratic curvature terms, and present exact solution in closed form. It turns out that the presence of the coupling constant…

广义相对论与量子宇宙学 · 物理学 2015-05-18 S. Jhingan , Sushant G. Ghosh

We consider here the gravitational collapse of a spherically symmetric inhomogeneous dust cloud described by the Tolman-Bondi models. By studying a general class of these models, we find that the end state of the collapse is either a black…

广义相对论与量子宇宙学 · 物理学 2009-10-22 P. S. Joshi , T. P. Singh
‹ 上一页 1 2 3 10 下一页 ›