Monday, July 8, 2013

1307.1520 (Narayan Banerjee et al.)

Towards a characterization of fields leading to black hole hair    [PDF]

Narayan Banerjee, Somasri Sen
In the present work, it is shown that an asymptotically flat spherical black hole can have a nontrivial signature of any field for an exterior observer if the energy momentum tensor of the corresponding field is either tracefree or if the trace falls off at least as rapidly as inverse cube of the radial distance. In the absence of a general No Hair Theorem, this result can provide a characterization of the fields leading to black hole hair.
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