Spacetime structure of self-similar spherically symmetric perfect fluid solutions

Abstract

We classify all spherically symmetric and homothetic spacetimes that are allowed kinematically by constructing them from a small number of building blocks. We then restrict attention to a particular dynamics, namely perfect fluid matter with the scale-free barotropic equation of state p = alpha mu where 0<alpha<1 is a constant. We assign conformal diagrams to all solutions in the complete classification of Carr and Coley, and so establish which of the kinematic possibilities are realized for these dynamics. We pay particular attention to those solutions which arise as critical solutions during gravitational collapse.

RevTex4, 14 pages, 16 eps figures, accepted for Phys. Rev. D

References in corpus (2)

• Global structure of Choptuik's critical solution in scalar field collapse
• Stability criterion for self-similar solutions with perfect fluids in general relativity

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