Progress in GRMHD simulations with SpECTRE

ORAL

Abstract

We present recent improvements in general relativistic hydrodynamics simulations with the open source numerical relativity code SpECTRE. Major updates include support for tabulated equations of states, implementation of higher-order and positivity-preserving adaptive order finite difference schemes in our discontinuous Galerkin-finite difference (DG-FD) hybrid solver, and integrating the DG-FD hybrid solver with spacetime evolution for fully general relativistic simulations. As a benchmark, we show a few recent tests including long-term (>100ms) stable simulations of isolated neutron star with strong magnetic field.

*This work was supported in part by the Sherman Fairchild Foundation and by NSF Grants No. PHY-2011961, No. PHY-2011968, and No. OAC-1931266 at Caltech, and NSF Grants No. PHY- 1912081 and No. OAC-1931280 at Cornell.

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Presenters

  • Yoonsoo Kim

    • Caltech

Authors

  • Yoonsoo Kim

    • Caltech

  • Nils Deppe

    • Caltech

  • William T Throwe

    • Cornell University

  • Nils L Vu

    • Caltech
    • Max Planck Institute for Gravitational Physics

  • Lawrence E Kidder

    • Cornell University

  • Elias R Most

    • Princeton University

  • Mark A Scheel

    • Caltech

  • Saul A Teukolsky

    • Cornell University