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Title: Magnetized Tolman-Bondi collapse

Abstract

We investigate the gravitational implosion of magnetized matter by studying the inhomogeneous collapse of a weakly magnetized Tolman-Bondi spacetime. The role of the field is analyzed by looking at the convergence of neighboring particle world lines. In particular, we identify the magnetically related stresses in the Raychaudhuri equation and use the Tolman-Bondi metric to evaluate their impact on the collapsing dust. We find that, despite the low energy level of the field, the Lorentz force dominates the advanced stages of the collapse, leading to a strongly anisotropic contraction. In addition, of all the magnetic stresses, those that resist the collapse are found to grow faster.

Authors:
 [1];  [2]
  1. D.A.M.T.P., Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
  2. Section of Astrophysics, Astronomy and Mechanics, Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124 (Greece)
Publication Date:
OSTI Identifier:
20782644
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevD.73.064010; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANISOTROPY; CONVERGENCE; COSMOLOGY; DUSTS; ENERGY LEVELS; GRAVITATION; GRAVITATIONAL COLLAPSE; LORENTZ FORCE; MAGNETISM; MATTER; METRICS; SPACE-TIME; STRESSES

Citation Formats

Germani, Cristiano, and Tsagas, Christos G. Magnetized Tolman-Bondi collapse. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.73.064010.
Germani, Cristiano, & Tsagas, Christos G. Magnetized Tolman-Bondi collapse. United States. doi:10.1103/PHYSREVD.73.064010.
Germani, Cristiano, and Tsagas, Christos G. Wed . "Magnetized Tolman-Bondi collapse". United States. doi:10.1103/PHYSREVD.73.064010.
@article{osti_20782644,
title = {Magnetized Tolman-Bondi collapse},
author = {Germani, Cristiano and Tsagas, Christos G.},
abstractNote = {We investigate the gravitational implosion of magnetized matter by studying the inhomogeneous collapse of a weakly magnetized Tolman-Bondi spacetime. The role of the field is analyzed by looking at the convergence of neighboring particle world lines. In particular, we identify the magnetically related stresses in the Raychaudhuri equation and use the Tolman-Bondi metric to evaluate their impact on the collapsing dust. We find that, despite the low energy level of the field, the Lorentz force dominates the advanced stages of the collapse, leading to a strongly anisotropic contraction. In addition, of all the magnetic stresses, those that resist the collapse are found to grow faster.},
doi = {10.1103/PHYSREVD.73.064010},
journal = {Physical Review. D, Particles Fields},
number = 6,
volume = 73,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}