9,741 research outputs found
On existence of mini-boson stars
We prove the existence of a countable family of globally regular solutions of
spherically symmetric Einstein-Klein-Gordon equations. These solutions, known
as mini-boson stars, were discovered numerically many years ago.Comment: 15 pages, 1 eps figure, LaTe
Investigation of the Interior of Colored Black Holes and the Extendability of Solutions of the Einstein-Yang/Mills Equations
We prove that any asymptotically flat solution to the spherically symmetric
SU(2) Einstein-Yang/Mills equations is globally defined. This result applies in
particular to the interior of colored black holes.Comment: Latex, 8 gif figure
Topological Surgery in Nature
In this paper, we extend the formal definition of topological surgery by
introducing new notions in order to model natural phenomena exhibiting it. On
the one hand, the common features of the presented natural processes are
captured by our schematic models and, on the other hand, our new definitions
provide the theoretical setting for examining the topological changes involved
in these processes.Comment: 23 pages, 11 figures. arXiv admin note: substantial text overlap with
arXiv:1603.0364
Reissner-Nordstrom-like solutions of the SU(2) Einstein-Yang/Mills (EYM) equations
In this paper we study a new type of solution of the spherically symmetric,
Einstein-Yang/Mills (EYM) equations with SU(2) gauge group. These solutions are
well-behaved in the far-field, and have a Reissner-Nordstrom type essential
singularity at the origin. These solutions display some novel features which
are not present in particle-like, or black-hole solutions. Any spherically
symmetric solution to the EYM equations, defined in the far-field, is either a
particle-like solution, a black-hole solution, or one of these RNL solutions.Comment: 5 pages, latex, no figures, Submitted to Comm. Math. Phys. January
15, 199
A Nonlinear Coupling Network to Simulate the Development of the r-mode Instablility in Neutron Stars I. Construction
R-modes of a rotating neutron star are unstable because of the emission of
gravitational radiation. We explore the saturation amplitudes of these modes
determined by nonlinear mode-mode coupling. Modelling the star as
incompressible allows the analytic computation of the coupling coefficients.
All couplings up to n=30 are obtained, and analytic values for the shear
damping and mode normalization are presented. In a subsequent paper we perform
numerical simulations of a large set of coupled modes.Comment: 15 pages 3 figure
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