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19922026
Showing 1993Show all

19 papers · 1 filter

astro-ph1993★ 1 cited

Arc Statistics with Realistic Cluster Potentials. I. Method and First Results

M. Bartelmann, A. Weiss

{}From the lensing properties of a numerically simulated cluster, from the statistical properties of the giant arcs produced by the cluster, and from comparing the cluster properti…

nucl-th1993★ 83 cited

Shell Effects in Nuclei Near Neutron Drip

M. M. Sharma, G. A. Lalazissis, W. Hillebrandt +1

Shell effects in nuclei close to the neutron-drip lines have been investigated. It has been demonstrated in the relativistic mean-field theory that nuclei very far from stability m…

gr-qc1993★ 11 cited

Trapped surfaces in spherical expanding open universes

Uwe Brauer, Edward Malec, Niall Ó Murchadha

Consider spherically symmetric initial data for a cosmology which, in the large, approximates an open Friedmann-Lema{\^ı}tre universe. Further assume that the data i…

astro-ph1993★ 5 cited

A gravitational lens model for B1422+231

R. Kormann, P. Schneider, M. Bartelmann

We construct a simple elliptical gravitational lens model for the quadruple lens B1422+231 and show that the details of the configuration cannot be easily understood in terms of th…

astro-ph1993★ 19 cited

Large-scale correlations between QSOs and IRAS galaxies

M. Bartelmann, P. Schneider

We demonstrate that high-redshift 1-Jansky radio sources are correlated with foreground IRAS galaxies on angular scales of several 10 arc minutes on a statistical significance leve…

astro-ph1993★ 146 cited

Lagrangian theory of gravitational instability of Friedman-Lemaitre cosmologies - generic third-order model for non-linear clustering

Thomas Buchert

The Lagrangian perturbation theory on Friedman-Lemaitre cosmologies investigated and solved up to the second order in earlier papers (Buchert 1992, Buchert \& Ehlers 1993) is evalu…

astro-ph1993

Formation of spiral and elliptical galaxies in a CDM cosmogony

Matthias Steinmetz, Ewald Mueller

The formation of galaxies in a CDM cosmogony is investigated by following the evolution of dark and baryonic matter and of the frequency- dependent spatially averaged radiation fie…

astro-ph1993★ 3 cited

The large-scale structure in a universe dominated by cold plus hot dark matter

Y. P. Jing, H. J. Mo, G. Boerner +1

Using numerical simulations, we investigate the large-scale gravitational clustering in a flat universe dominated by cold plus hot dark matter (i.e., $Ω_0=\ocdm+\ohdm+\obaryon=1$).…

gr-qc1993★ 2 cited

Blow-Up of Test Fields Near Cauchy Horizons

J. Rauch, A. D. Rendall

The behaviour of test fields near a compact Cauchy horizon is investigated. It is shown that solutions of nonlinear wave equations on Taub spacetime with generic initial data canno…

gr-qc1993★ 47 cited

Global existence of classical solutions to the Vlasov-Poisson system in a three dimensional, cosmological setting

Gerhard Rein, Alan D. Rendall

The initial value problem for the Vlasov-Poisson system is by now well understood in the case of an isolated system where, by definition, the distribution function of the particles…

gr-qc1993★ 39 cited

A regularity theorem for solutions of the spherically symmetric Vlasov-Einstein system

Gerhard Rein, Alan D. Rendall, Jack Schaeffer

In a previous paper two of the authors (G. R. and A. D. R.) showed that there exist global, classical solutions of the spherically symmetric Vlasov-Einstein system for small initia…

gr-qc1993★ 97 cited

Gravitational waves in general relativity: XIV. Bondi expansions and the ``polyhomogeneity'' of \Scri

Piotr T. Chrusciel, Malcolm A. H. MacCallum, David B. Singleton

The structure of polyhomogeneous space-times (i.e., space-times with metrics which admit an expansion in terms of ) constructed by a Bondi--Sachs type method is ana…

gr-qc1993★ 8 cited

On the Definition of Averagely Trapped Surfaces

Sean A. Hayward

Previously suggested definitions of averagely trapped surfaces are not well-defined properties of 2-surfaces, and can include surfaces in flat space-time. A natural definition of a…

gr-qc1993★ 60 cited

On ``hyperboloidal'' Cauchy data for vacuum Einstein equations and obstructions to smoothness of ``null infinity''

Lars Andersson, Piotr T. Chrusciel

Various works have suggested that the Bondi--Sachs--Penrose decay conditions on the gravitational field at null infinity are not generally representative of asymptotically flat spa…

gr-qc1993★ 72 cited

Maximal Hypersurfaces in Asymptotically Stationary Space-Times

P. T. Chrusciel, R. Wald

Existence of maximal hypersurfaces and of foliations by maximal hypersurfaces is proven in two classes of asymptotically flat spacetimes which possess a one parameter group of isom…

gr-qc1993★ 76 cited

Global Structure of a Black-Hole Cosmos and its Extremes

Dieter R. Brill, Sean A. Hayward

We analyze the global structure of a family of Einstein-Maxwell solutions parametrized by mass, charge and cosmological constant. In a qualitative classification there are: (i) gen…

gr-qc1993★ 294 cited

Quasi-Local Gravitational Energy

Sean A. Hayward

A dynamically preferred quasi-local definition of gravitational energy is given in terms of the Hamiltonian of a `2+2' formulation of general relativity. The energy is well-defined…

gr-qc1993★ 54 cited

The Newtonian Limit for Asymptotically Flat Solutions of the Vlasov-Einstein System

Alan D. Rendall

It is shown that there exist families of asymptotically flat solutions of the Einstein equations coupled to the Vlasov equation describing a collisionless gas which have a Newtonia…

gr-qc1993★ 742 cited

General Laws of Black-Hole Dynamics

Sean A. Hayward

A general definition of a black hole is given, and general `laws of black-hole dynamics' derived. The definition involves something similar to an apparent horizon, a trapping horiz…