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Title: νbhlight: Radiation GRMHD for Neutrino-driven Accretion Flows

Journal Article · · The Astrophysical Journal. Supplement Series (Online)

The 2017 detection of the in-spiral and merger of two neutron stars was a landmark discovery in astrophysics. We now know that such mergers are central engines of short gamma-ray bursts and sites of r-process nucleosynthesis, where the heaviest elements in our universe are formed. In the coming years, we expect many more such mergers. Modeling such systems presents a significant computational challenge along with the observational one. To meet this challenge, we present $$\nu {\mathtt{bhlight}}$$, a scheme for solving general relativistic magnetohydrodynamics with energy-dependent neutrino transport in full (3 + 1) dimensions, facilitated by Monte Carlo methods. We present a suite of tests demonstrating the accuracy, efficacy, and necessity of our scheme. Here, we demonstrate the potential of our scheme by running a sample calculation in a domain of interest—the dynamics and composition of the accretion disk formed by a binary neutron star merger.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1511260
Report Number(s):
LA-UR-19-20336
Journal Information:
The Astrophysical Journal. Supplement Series (Online), Vol. 241, Issue 2; ISSN 1538-4365
Publisher:
American Astronomical Society/IOPCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (1)

Full Transport Model of GW170817-Like Disk Produces a Blue Kilonova text January 2019