Cosmic strings and black holes

Details Cosmic strings and black holes Cosmic strings and black holes

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..34.2263a&link_type=abstract

Physical Review D (Particles and Fields), Volume 34, Issue 8, 15 October 1986, pp.2263-2266

Physics

90

Black Holes

Scientific paper

The metric for a Schwarzschild black hole with a cosmic string passing through it is discussed. The thermodynamics of such an object is considered, and it is shown that S=(1/4)A, where S is the entropy and A is the horizon area. It is noted that the Schwarzschild mass parameter M, which is the gravitational mass of the system, is no longer identical to its energy. A solution representing a pair of black holes held apart by strings is discussed. It is nearly identical to a static, axially symmetric solution given long ago by Bach and Weyl. It is shown how these solutions, which were formerly a mathematical curiosity, may be given a more physical interpretation in terms of cosmic strings.

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