On radiating stellar collapse with shear |
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| Authors: | Kesh S Govinder Megan Govender & Roy Maartens |
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| Institution: | Department of Mathematics and Applied Mathematics, University of Natal, Durban 4041, South Africa,;Department of Physics, Technikon Natal, Durban 4000, South Africa,;School of Computer Science and Mathematics, Portsmouth University, Portsmouth PO1 2EG |
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| Abstract: | Relativistic models of radiating stellar collapse with shear require careful checking of all the equations and quantities involved. We illustrate this by showing that, in a recently proposed model, the metric ansatz is in fact too restrictive to allow any radial evolution to occur, and only tangential evolution is possible. Furthermore, the assumption of pressure isotropy is shown to reduce the model to the static case without radiation or shear. |
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| Keywords: | gravitation relativity stars: interiors |
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