skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

This content will become publicly available on April 5, 2020

Title: ν bhlight: Radiation GRMHD for Neutrino-driven Accretion Flows

Abstract

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.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1511260
Report Number(s):
LA-UR-19-20336
Journal ID: ISSN 1538-4365
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Supplement Series (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal. Supplement Series (Online); Journal Volume: 241; Journal Issue: 2; Journal ID: ISSN 1538-4365
Publisher:
American Astronomical Society/IOP
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; accretion; accretion disks; black hole physics; magnetohydrodynamics(MHD); methods: numerical; neutrinos; radiative transfer

Citation Formats

Miller, Jonah Maxwell, Ryan, Ben. Ransom, and Dolence, Joshua C. νbhlight: Radiation GRMHD for Neutrino-driven Accretion Flows. United States: N. p., 2019. Web. doi:10.3847/1538-4365/ab09fc.
Miller, Jonah Maxwell, Ryan, Ben. Ransom, & Dolence, Joshua C. νbhlight: Radiation GRMHD for Neutrino-driven Accretion Flows. United States. doi:10.3847/1538-4365/ab09fc.
Miller, Jonah Maxwell, Ryan, Ben. Ransom, and Dolence, Joshua C. Fri . "νbhlight: Radiation GRMHD for Neutrino-driven Accretion Flows". United States. doi:10.3847/1538-4365/ab09fc.
@article{osti_1511260,
title = {νbhlight: Radiation GRMHD for Neutrino-driven Accretion Flows},
author = {Miller, Jonah Maxwell and Ryan, Ben. Ransom and Dolence, Joshua C.},
abstractNote = {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.},
doi = {10.3847/1538-4365/ab09fc},
journal = {The Astrophysical Journal. Supplement Series (Online)},
number = 2,
volume = 241,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on April 5, 2020
Publisher's Version of Record

Save / Share: