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HARM3D+NUC: GRMHD, nuclear tables and neutrino leakage

Published online by Cambridge University Press:  27 February 2023

Ariadna Murguia-Berthier Open the ORCID record for Ariadna Murguia-Berthier [Opens in a new window] ,
Scott C. Noble ,
Luke F. Roberts  and
Enrico Ramirez-Ruiz
Ariadna Murguia-Berthier
Affiliation:
Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), 1800 Sherman Ave., Evanston, IL 60201, USA email: arimurguia@northwestern.edu
Scott C. Noble
Affiliation:
Gravitational Astrophysics Lab, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
Luke F. Roberts
Affiliation:
CCS-2, Los Alamos National Laboratory, Los Alamos, NM 87545, USA NSCL, Michigan State University, East Lansing, MI 48824, USA
Enrico Ramirez-Ruiz
Affiliation:
Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA
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Abstract

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On August 17, 2017, the LIGO/VIRGO collaboration detected the first gravitational wave signal coming from the merger of two neutron stars. This groundbreaking discovery, referred to as GW170817, revealed to us how heavy elements, such as gold and platinum, are synthesized through a mechanism known as rapid neutron capture (r-process). In order to fully understand these signals, we need to simulate the resulting accretion disk around a black hole, and its outflows. This task requires efficient computing codes that include general relativity magnetohydrodynamics (GRMHD), neutrino physics, and a model for matter at high densities. We present the implementation of a tabulated equation of state that takes care of matter at high densities and a neutrino leakage scheme that considers the impact of neutrinos into HARM3D, a GRMHD parallelized code. We also apply the tools to a magnetized torus.

Keywords

stars: neutronblack hole physicsequation of statenuclear reactionsnucleosynthesisabundancesneutrinos
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. 228 - 232
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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