(\nu\texttt{bhlight}\): Radiation GRMHD for Neutrino-Driven Accretion Flows
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 year...
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| creator | Miller, Jonah M Ryan, Ben R Dolence, Joshua C |
| description | 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 \(\nu\texttt{bhlight}\), 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. 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_str_mv | 10.48550/arxiv.1903.09273 |
| format | Article |
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| issn | 2331-8422 |
| language | eng |
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| source | Free E- Journals |
| subjects | Accretion disks Astrophysics Binary stars Computational fluid dynamics Computer simulation Gamma ray bursts Gamma rays Magnetohydrodynamics Monte Carlo simulation Neutrinos Neutron stars Neutrons Nuclear fusion Universe |
| title | (\nu\texttt{bhlight}\): Radiation GRMHD for Neutrino-Driven Accretion Flows |
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