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Advancing Computational Methods to Understand the Dynamics of Ejection, Accretion, Winds, and Jets in Binary Neutron Star Mergers

Published online by Cambridge University Press:  27 February 2023

Federico G. Lopez Armengol Open the ORCID record for Federico G. Lopez Armengol [Opens in a new window]  and
Compact-Binaries Collaboration
Federico G. Lopez Armengol
Affiliation:
Center for Computational Relativity and Gravitation, Rochester Institute of Technology, Rochester, New York 14623, USA
Compact-Binaries Collaboration
Affiliation:
https://compact-binaries.org/
Rights & Permissions [Opens in a new window]

Abstract

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We introduce the HandOff, a set of computational tools to transfer general relativistic magnetohydrodynamic and spacetime data from the numerical code IllinoisGRMHD to Harm3d. While the former simulates binary neutron star (BNS) mergers in full dynamical General Relativity, the latter specializes in modeling accretion disks around black holes (BH) over long timescales. The HandOff, then, enables us to transfer the outcome of BNS mergers after BH formation from IllinoisGRMHD to Harm3d and to evolve the post-merger system efficiently over long timescales. We show our latest results in this respect, for matter modeled as a magnetized ideal-fluid, and discuss our future plans which involve incorporating advanced equations of state and neutrino physics into BNS simulations using the HandOff approach.

Keywords

stars: neutron(magnetohydrodynamics:) MHDblack hole physicsaccretionaccretion disks
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S363: Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution , June 2020 , pp. 224 - 227
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

References

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