Emergent Nucleosynthesis from a 1.2 s Long Simulation of a Black Hole Accretion Disk
We simulate a black hole accretion disk system with full-transport general relativistic neutrino radiation magnetohydrodynamics for 1.2 s. This system is likely to form after the merger of two compact objects and is thought to be a robust site of r -process nucleosynthesis. We consider the case of a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad1819 |
| _version_ | 1827355592940847104 |
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| author | Trevor M. Sprouse Kelsey A. Lund Jonah M. Miller Gail C. McLaughlin Matthew R. Mumpower |
| author_facet | Trevor M. Sprouse Kelsey A. Lund Jonah M. Miller Gail C. McLaughlin Matthew R. Mumpower |
| author_sort | Trevor M. Sprouse |
| collection | DOAJ |
| description | We simulate a black hole accretion disk system with full-transport general relativistic neutrino radiation magnetohydrodynamics for 1.2 s. This system is likely to form after the merger of two compact objects and is thought to be a robust site of r -process nucleosynthesis. We consider the case of a black hole accretion disk arising from the merger of two neutron stars. Our simulation time coincides with the nucleosynthesis timescale of the r -process (∼1 s). Because these simulations are time-consuming, it is common practice to run for a “short” duration of approximately 0.1–0.3 s. We analyze the nucleosynthetic outflow from this system and compare the results of stopping at 0.12 and 1.2 s. We find that the addition of mass ejected in the longer simulation as well as more favorable thermodynamic conditions from emergent viscous ejecta greatly impacts the nucleosynthetic outcome. We quantify the error in nucleosynthetic outcomes between short and long cuts. |
| first_indexed | 2024-03-08T04:45:28Z |
| format | Article |
| id | doaj.art-2010545584f3417ea0f5ad7826f30a65 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-08T04:45:28Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-2010545584f3417ea0f5ad7826f30a652024-02-08T10:17:19ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-0196217910.3847/1538-4357/ad1819Emergent Nucleosynthesis from a 1.2 s Long Simulation of a Black Hole Accretion DiskTrevor M. Sprouse0https://orcid.org/0000-0002-4375-4369Kelsey A. Lund1https://orcid.org/0000-0003-0031-1397Jonah M. Miller2https://orcid.org/0000-0001-6432-7860Gail C. McLaughlin3https://orcid.org/0000-0001-6811-6657Matthew R. Mumpower4https://orcid.org/0000-0002-9950-9688Theoretical Division, Los Alamos National Laboratory , Los Alamos, NM 87545, USA ; mumpower@lanl.gov; Center for Theoretical Astrophysics, Los Alamos National Laboratory , Los Alamos, NM 87545, USATheoretical Division, Los Alamos National Laboratory , Los Alamos, NM 87545, USA ; mumpower@lanl.gov; Department of Physics, North Carolina State University , Raleigh, NC 27695, USA; Center for Nonlinear Studies, Los Alamos National Laboratory , Los Alamos, NM 87545, USACenter for Theoretical Astrophysics, Los Alamos National Laboratory , Los Alamos, NM 87545, USA; Computational Division, Los Alamos National Laboratory , Los Alamos, NM 87545, USADepartment of Physics, North Carolina State University , Raleigh, NC 27695, USATheoretical Division, Los Alamos National Laboratory , Los Alamos, NM 87545, USA ; mumpower@lanl.gov; Center for Theoretical Astrophysics, Los Alamos National Laboratory , Los Alamos, NM 87545, USAWe simulate a black hole accretion disk system with full-transport general relativistic neutrino radiation magnetohydrodynamics for 1.2 s. This system is likely to form after the merger of two compact objects and is thought to be a robust site of r -process nucleosynthesis. We consider the case of a black hole accretion disk arising from the merger of two neutron stars. Our simulation time coincides with the nucleosynthesis timescale of the r -process (∼1 s). Because these simulations are time-consuming, it is common practice to run for a “short” duration of approximately 0.1–0.3 s. We analyze the nucleosynthetic outflow from this system and compare the results of stopping at 0.12 and 1.2 s. We find that the addition of mass ejected in the longer simulation as well as more favorable thermodynamic conditions from emergent viscous ejecta greatly impacts the nucleosynthetic outcome. We quantify the error in nucleosynthetic outcomes between short and long cuts.https://doi.org/10.3847/1538-4357/ad1819R-processNucleosynthesisNuclear astrophysicsNuclear physicsMagnetohydrodynamical simulationsStellar accretion disks |
| spellingShingle | Trevor M. Sprouse Kelsey A. Lund Jonah M. Miller Gail C. McLaughlin Matthew R. Mumpower Emergent Nucleosynthesis from a 1.2 s Long Simulation of a Black Hole Accretion Disk The Astrophysical Journal R-process Nucleosynthesis Nuclear astrophysics Nuclear physics Magnetohydrodynamical simulations Stellar accretion disks |
| title | Emergent Nucleosynthesis from a 1.2 s Long Simulation of a Black Hole Accretion Disk |
| title_full | Emergent Nucleosynthesis from a 1.2 s Long Simulation of a Black Hole Accretion Disk |
| title_fullStr | Emergent Nucleosynthesis from a 1.2 s Long Simulation of a Black Hole Accretion Disk |
| title_full_unstemmed | Emergent Nucleosynthesis from a 1.2 s Long Simulation of a Black Hole Accretion Disk |
| title_short | Emergent Nucleosynthesis from a 1.2 s Long Simulation of a Black Hole Accretion Disk |
| title_sort | emergent nucleosynthesis from a 1 2 s long simulation of a black hole accretion disk |
| topic | R-process Nucleosynthesis Nuclear astrophysics Nuclear physics Magnetohydrodynamical simulations Stellar accretion disks |
| url | https://doi.org/10.3847/1538-4357/ad1819 |
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