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Evolving relativistic fluid spacetimes using pseudospectral methods and finite differencing

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arxiv gr-qc/0702126 v1 pith:P3MNUYHM submitted 2007-02-25 gr-qc

Matthew D. Duez , Lawrence E. Kidder , Saul A. Teukolsky This is my paper · ORCID
classification gr-qc
keywords codedifferencingequationsfinitefluidsgridmethodspseudospectral
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We present a new code for solving the coupled Einstein-hydrodynamics equations to evolve relativistic, self-gravitating fluids. The Einstein field equations are solved on one grid using pseudospectral methods, while the fluids are evolved on another grid by finite differencing. We discuss implementation details, such as the communication between the grids and the treatment of stellar surfaces, and present code tests.

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