Gravitational hedgehog, stringy hedgehog and stringy sphere

Details Gravitational hedgehog, stringy hedgehog and stringy sphere Gravitational hedgehog, stringy hedgehog and stringy sphere

2003-07-23

arxiv.org/abs/gr-qc/0307099v3

JHEP 0311 (2003) 058

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages

Scientific paper

10.1088/1126-6708/2003/11/058

We investigate the solutions of Einstein equations such that a hedgehog solution is matched to different exterior or interior solutions via a spherical shell. In the case where both the exterior and the interior regions are hedgehog solutions or one of them is flat, the resulting spherical shell becomes a stringy shell. We also consider more general matchings and see that in this case the shell deviates from its stringy character.

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