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Accreting Black Hole Binaries

In: High Performance Computing in Science and Engineering '20

Author

Listed:
  • Roman Gold

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Luciano Rezzolla

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Ludwig Jens Papenfort

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Samuel Tootle

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Hector Olivares

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Elias Most

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Ziri Younsi

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Yosuke Mizuno

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Oliver Porth

    (Goethe University, Institute for Theoretical Physics (ITP))

  • Christian Fromm

    (Goethe University, Institute for Theoretical Physics (ITP))

Abstract

We describe our utilization of HLRS resources in 2020. Chief among this has been a generation of complete spacetime initial data and a completion of a seamless interface between the BHAC code and the Kadath library. We can now access Kadath routines directly from within BHAC crucially avoiding unnecessary IO operations and enabling a spectrally accurate evaluation of metric quantities and its derivatives on any grid (static or dynamic). These developments form a crucial pillar for continued progress including follow-up work even after the BBHDISKS project finishes. Second, the numerical treatment of the sensitive horizon region has been successfully completed and is capable to handle evolutions on par with single black hole evolutions. Additionally we have completed tests of some of our algorithms that directly benefit the funded project. We have refined GRMHD libraries for an improved interpretation of the first black hole image. Lastly, we have started preparatory work to set up a pipeline to convert our novel accreting black-hole binary simulations into images and movies. The BHOSS code is now capable of producing images in black hole binary spacetimes and remaining development tasks to fully connect it to the matter evolutions obtained in this project are now modest. Research field: General relativity/Astrophysics

Suggested Citation

  • Roman Gold & Luciano Rezzolla & Ludwig Jens Papenfort & Samuel Tootle & Hector Olivares & Elias Most & Ziri Younsi & Yosuke Mizuno & Oliver Porth & Christian Fromm, 2021. "Accreting Black Hole Binaries," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '20, pages 59-67, Springer.
    • Handle: RePEc:spr:sprchp:978-3-030-80602-6_4
    DOI: 10.1007/978-3-030-80602-6_4
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