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Spinning up asymptotically flat spacetimes

E N Glass and J P Krisch

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We present a method for constructing stationary, asymptotically flat, rotating solutions of Einstein's field equations. One of the spun-up solutions has quasilocal mass but no global mass. It has an ergosphere but no event horizon. The angular momentum is constant everywhere beyond the ergosphere. The energy–momentum content of this solution can be interpreted as a rotating string fluid.


PACS

04.20.-q Classical general relativity

98.80.Es Observational cosmology (including Hubble constant, distance scale, cosmological constant, early Universe, etc)

MSC

83C05 Einstein's equations (general structure, canonical formalism, Cauchy problems)

83F05 Cosmology

Subjects

Gravitation and cosmology

Astrophysics and astroparticles

Dates

Issue 23 (7 December 2004)

Received 26 January 2004, in final form 23 September 2004

Published 16 November 2004



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