Tuesday, July 30, 2013

1307.7508 (Martin Čermák et al.)

Cosmologically inspired Kastor-Traschen solution    [PDF]

Martin Čermák, Martin Zouhar
Kastor-Traschen (KT) type solution in a cosmological set up is studied in this article. We examine a hybrid of a KT metric and a Friedmann-Robertson-Walker-Lemaitre (FRWL) solution. The problem is treated in a general number dimension D>=4 and we include the cosmological constant Lambda parameter into the Einstein-Maxwell equations. The matter source consists of two fluids - charged dust and neutral fluid with non-vanishing pressure. The equations of motion for the fluid electromagnetic (EM) field system are written down and an exact solution generalising extremely charged Reissner-Nordstr\"{o}m black hole to arbitrary spatial curvature parameter is presented. We examine metric and curvature scalars singularities as well as energy conditions.
View original: http://arxiv.org/abs/1307.7508

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