Stable gravastars with generalized exteriors
Benedict M. N. CarterDepartment of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
2005en
ABI
Abstract
New spherically symmetric gravastar solutions, stable to radial perturbations, are found by utilising the construction of Visser and Wiltshire. The solutions possess an anti--de Sitter or de Sitter interior and a Schwarzschild--(anti)--de Sitter or Reissner--Nordstr\"{o}m exterior. We find a wide range of parameters which allow stable gravastar solutions, and present the different qualitative behaviours of the equation of state for these parameters.
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