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A Note on Trapped Surfaces in the Vaidya Solution
Stockholm University, Faculty of Science, Department of Physics. (KoF)
2009 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 79, no 2, 024027- p.Article in journal (Refereed) Published
Abstract [en]

The Vaidya solution describes the gravitational collapse of a finite shell of incoherent radiation falling into flat spacetime and giving rise to a Schwarzschild black hole. There has been a question whether closed trapped surfaces can extend into the flat region (whereas closed outer trapped surfaces certainly can). For the special case of self-similar collapse we show that the answer is yes, if and only if the mass function rises fast enough.

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2009. Vol. 79, no 2, 024027- p.
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URN: urn:nbn:se:su:diva-33786DOI: 10.1103/PhysRevD.79.024027OAI: oai:DiVA.org:su-33786DiVA: diva2:283580
Available from: 2009-12-29 Created: 2009-12-29 Last updated: 2017-12-12Bibliographically approved

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