Cosmic walls and axially symmetric sigma models

Details Cosmic walls and axially symmetric sigma models Cosmic walls and axially symmetric sigma models

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cqgra...6..705l&link_type=abstract

Classical and Quantum Gravity (ISSN 0264-9381), vol. 6, May 1, 1989, p. 705-716. Research supported by CNPq, Consejo Superior de

Astronomy and Astrophysics

Astronomy

7

Cosmology, Field Theory (Physics), Mass Distribution, Spherical Shells, Black Holes (Astronomy), Broken Symmetry, Bubbles, Continuum Mechanics, Einstein Equations, Shell Theory, Voids

Scientific paper

The use of sigma model field theories (harmonic maps) to describe shells of matter is discussed in the context of exact axially symmetric solutions of the Einstein equations. Particular solutions that represent finite spherical shells and cones are presented. The special case of a spherical shell in the presence of a Schwarzschild black hole is studied in some detail.

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