A Note on Trapped Surfaces in the Vaidya Solution
نویسندگان
چکیده
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. Email address: [email protected]. Supported by VR. Email address: [email protected] 1
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تاریخ انتشار 2008