Numerical simulations of the jetted tidal disruption event Swift J1644+57

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2016
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Abstract
In this work we focus on the technical details of the numerical simulations of the non-thermal transient Swift J1644+57, whose emission is probably produced by a two- component jet powered by a tidal disruption event. In this context we provide details of the coupling between the relativistic hydrodynamic simulations and the radiative transfer code. First, we consider the technical demands of one-dimensional simulations of a fast relativistic jet, and show to what extent (for the same physical parameters of the model) do the computed light curves depend on the numerical parameters of the different codes employed. In the second part we explain the difficulties of computing light curves from axisymmetric two dimensonal simulations and discuss a procedure that yields an acceptable tradeoff between the computational cost and the quality of the results.
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Mimica, Petar Aloy Toras, Miguel Angel Giannios, Dimitrios Metzger, Brian D. 2016 Numerical simulations of the jetted tidal disruption event Swift J1644+57 Journal of physics. Conference series 719 1 012008