Production of the entire range of r-process nuclides by black hole accretion disc outflows from neutron star mergers

Wu, Meng-Ru; Fernández, Rodrigo; Martínez-Pinedo, Gabriel; Metzger, Brian D.

doi:10.1093/mnras/stw2156

Title: Production of the entire range of r-process nuclides by black hole accretion disc outflows from neutron star mergers

Journal Article · Thu Aug 25 00:00:00 EDT 2016 · Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1093/mnras/stw2156· OSTI ID:1526235

Wu, Meng-Ru ^[1]; Fernández, Rodrigo ^[2]; Martínez-Pinedo, Gabriel ^[3]; Metzger, Brian D. ^[4]

Technical Univ. of Darmstadt (Germany)
Univ. of California, Berkeley, CA (United States)
Technical Univ. of Darmstadt (Germany); GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
Columbia Univ., New York, NY (United States)

We consider r-process nucleosynthesis in outflows from black hole accretion discs formed in double neutron star and neutron star–black hole mergers. These outflows, powered by angular momentum transport processes and nuclear recombination, represent an important – and in some cases dominant – contribution to the total mass ejected by the merger. Here we calculate the nucleosynthesis yields from disc outflows using thermodynamic trajectories from hydrodynamic simulations, coupled to a nuclear reaction network. We find that outflows produce a robust abundance pattern around the second r-process peak (mass number A ~ 130), independent of model parameters, with significant production of A < 130 nuclei. This implies that dynamical ejecta with high electron fraction may not be required to explain the observed abundances of r-process elements in metal poor stars. Disc outflows reach the third peak (A ~ 195) in most of our simulations, although the amounts produced depend sensitively on the disc viscosity, initial mass or entropy of the torus, and nuclear physics inputs. Some of our models produce an abundance spike at A = 132 that is absent in the Solar system r-process distribution. The spike arises from convection in the disc and depends on the treatment of nuclear heating in the simulations. We conclude that disc outflows provide an important – and perhaps dominant – contribution to the r-process yields of compact binary mergers, and hence must be included when assessing the contribution of these systems to the inventory of r-process elements in the Galaxy.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)

Sponsoring Organization:: USDOE

OSTI ID:: 1526235

Journal Information:: Monthly Notices of the Royal Astronomical Society, Vol. 463, Issue 3; ISSN 0035-8711

Publisher:: Royal Astronomical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 132 works

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Equation-of-state constraints and the QCD phase transition in the era of gravitational-wave astronomy Bauswein, Andreas; Bastian, Niels-Uwe Friedrich; Blaschke, David XIAMEN-CUSTIPEN WORKSHOP ON THE EQUATION OF STATE OF DENSE NEUTRON-RICH MATTER IN THE ERA OF GRAVITATIONAL WAVE ASTRONOMY, AIP Conference Proceedings https://doi.org/10.1063/1.5117803	conference	January 2019
Signatures of hypermassive neutron star lifetimes on r-process nucleosynthesis in the disc ejecta from neutron star mergers Lippuner, Jonas; Fernández, Rodrigo; Roberts, Luke F. Monthly Notices of the Royal Astronomical Society, Vol. 472, Issue 1 https://doi.org/10.1093/mnras/stx1987	journal	August 2017
Impact of ejecta morphology and composition on the electromagnetic signatures of neutron star mergers Wollaeger, Ryan T.; Korobkin, Oleg; Fontes, Christopher J. Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 3 https://doi.org/10.1093/mnras/sty1018	journal	April 2018
Optimizing searches for electromagnetic counterparts of gravitational wave triggers Coughlin, Michael W.; Tao, Duo; Chan, Man Leong Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 1 https://doi.org/10.1093/mnras/sty1066	journal	April 2018
Optimizing multitelescope observations of gravitational-wave counterparts Coughlin, Michael W.; Antier, Sarah; Corre, David Monthly Notices of the Royal Astronomical Society, Vol. 489, Issue 4 https://doi.org/10.1093/mnras/stz2485	journal	September 2019
A new delay time distribution for merging neutron stars tested against Galactic and cosmic data Simonetti, Paolo; Matteucci, Francesca; Greggio, Laura Monthly Notices of the Royal Astronomical Society, Vol. 486, Issue 2 https://doi.org/10.1093/mnras/stz991	journal	April 2019
Illuminating gravitational waves: A concordant picture of photons from a neutron star merger Kasliwal, M. M.; Nakar, E.; Singer, L. P. Science, Vol. 358, Issue 6370 https://doi.org/10.1126/science.aap9455	journal	October 2017
Multimessenger parameter estimation of GW170817 Radice, David; Dai, Liang The European Physical Journal A, Vol. 55, Issue 4 https://doi.org/10.1140/epja/i2019-12716-4	journal	April 2019
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Gravitational-wave astrophysics from neutron star inspiral and coalescence Friedman, John L. International Journal of Modern Physics D, Vol. 27, Issue 11 https://doi.org/10.1142/s0218271818430186	journal	August 2018
A kilonova as the electromagnetic counterpart to a gravitational-wave source Smartt, S. J.; Chen, T. -W.; Jerkstrand, A. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2017-12239	text	January 2017
Formation of Double Neutron Star Systems Tauris, T. M.; Kramer, M.; Freire, P. C. C. The Astrophysical Journal, Vol. 846, Issue 2 https://doi.org/10.3847/1538-4357/aa7e89	journal	September 2017
The Universality of the Rapid Neutron-capture Process Revealed by a Possible Disrupted Dwarf Galaxy Star Casey, Andrew R.; Schlaufman, Kevin C. The Astrophysical Journal, Vol. 850, Issue 2 https://doi.org/10.3847/1538-4357/aa9079	journal	November 2017
Properties of Kilonovae from Dynamical and Post-merger Ejecta of Neutron Star Mergers Tanaka, Masaomi; Kato, Daiji; Gaigalas, Gediminas The Astrophysical Journal, Vol. 852, Issue 2 https://doi.org/10.3847/1538-4357/aaa0cb	journal	January 2018
A Magnetar Origin for the Kilonova Ejecta in GW170817 Metzger, Brian D.; Thompson, Todd A.; Quataert, Eliot The Astrophysical Journal, Vol. 856, Issue 2 https://doi.org/10.3847/1538-4357/aab095	journal	March 2018
From Actinides to Zinc: Using the Full Abundance Pattern of the Brightest Star in Reticulum II to Distinguish between Different r -process Sites Ji, Alexander P.; Frebel, Anna The Astrophysical Journal, Vol. 856, Issue 2 https://doi.org/10.3847/1538-4357/aab14a	journal	April 2018
Three-dimensional GRMHD Simulations of Neutrino-cooled Accretion Disks from Neutron Star Mergers Siegel, Daniel M.; Metzger, Brian D. The Astrophysical Journal, Vol. 858, Issue 1 https://doi.org/10.3847/1538-4357/aabaec	journal	May 2018
Stochastic Chemical Evolution of Galactic Subhalos and the Origin of r -process Elements Ojima, Takuya; Ishimaru, Yuhri; Wanajo, Shinya The Astrophysical Journal, Vol. 865, Issue 2 https://doi.org/10.3847/1538-4357/aada11	journal	September 2018
Super-knee Cosmic Rays from Galactic Neutron Star Merger Remnants Kimura, Shigeo S.; Murase, Kohta; Mészáros, Peter The Astrophysical Journal, Vol. 866, Issue 1 https://doi.org/10.3847/1538-4357/aadc0a	journal	October 2018
Physical Conditions for the r -process. I. Radioactive Energy Sources of Kilonovae Wanajo, Shinya The Astrophysical Journal, Vol. 868, Issue 1 https://doi.org/10.3847/1538-4357/aae0f2	journal	November 2018
Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts, and Nucleosynthesis Radice, David; Perego, Albino; Hotokezaka, Kenta The Astrophysical Journal, Vol. 869, Issue 2 https://doi.org/10.3847/1538-4357/aaf054	journal	December 2018
Black Hole Hyperaccretion Inflow–Outflow Model. II. Long-duration Gamma-Ray Bursts and Supernova ⁵⁶ Ni Bumps Song, Cui-Ying; Liu, Tong The Astrophysical Journal, Vol. 871, Issue 1 https://doi.org/10.3847/1538-4357/aaf6ae	journal	January 2019
Neutron Star Mergers Might Not Be the Only Source of r -process Elements in the Milky Way Côté, Benoit; Eichler, Marius; Arcones, Almudena The Astrophysical Journal, Vol. 875, Issue 2 https://doi.org/10.3847/1538-4357/ab10db	journal	April 2019
Probing the Production of Actinides under Different r-process Conditions Eichler, M.; Sayar, W.; Arcones, A. The Astrophysical Journal, Vol. 879, Issue 1 https://doi.org/10.3847/1538-4357/ab24cf	journal	July 2019
Active–Sterile Neutrino Oscillations in Neutrino-driven Winds: Implications for Nucleosynthesis Xiong, Zewei; Wu, Meng-Ru; Qian, Yong-Zhong The Astrophysical Journal, Vol. 880, Issue 2 https://doi.org/10.3847/1538-4357/ab2870	journal	July 2019
The Lanthanide Fraction Distribution in Metal-poor Stars: A Test of Neutron Star Mergers as the Dominant r -process Site Ji, Alexander P.; Drout, Maria R.; Hansen, Terese T. The Astrophysical Journal, Vol. 882, Issue 1 https://doi.org/10.3847/1538-4357/ab3291	journal	August 2019
Enrichment of Strontium in Dwarf Galaxies Hirai, Yutaka; Wanajo, Shinya; Saitoh, Takayuki R. The Astrophysical Journal, Vol. 885, Issue 1 https://doi.org/10.3847/1538-4357/ab4654	journal	October 2019
Diversity of Kilonova Light Curves Kawaguchi, Kyohei; Shibata, Masaru; Tanaka, Masaomi The Astrophysical Journal, Vol. 889, Issue 2 https://doi.org/10.3847/1538-4357/ab61f6	journal	February 2020
The Intermediate r-process in Core-collapse Supernovae Driven by the Magneto-rotational Instability Nishimura (西村信, N.; Sawai (澤井秀, H.; Takiwaki (滝脇知, T. The Astrophysical Journal, Vol. 836, Issue 2 https://doi.org/10.3847/2041-8213/aa5dee	journal	February 2017
AT 2017gfo: An Anisotropic and Three-component Kilonova Counterpart of GW170817 Perego, Albino; Radice, David; Bernuzzi, Sebastiano The Astrophysical Journal, Vol. 850, Issue 2 https://doi.org/10.3847/2041-8213/aa9ab9	journal	November 2017
GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations Radice, David; Perego, Albino; Zappa, Francesco The Astrophysical Journal, Vol. 852, Issue 2 https://doi.org/10.3847/2041-8213/aaa402	journal	January 2018
Viscous-dynamical Ejecta from Binary Neutron Star Mergers Radice, David; Perego, Albino; Hotokezaka, Kenta The Astrophysical Journal, Vol. 869, Issue 2 https://doi.org/10.3847/2041-8213/aaf053	journal	December 2018
Constraining Collapsar r -process Models through Stellar Abundances Macias, Phillip; Ramirez-Ruiz, Enrico The Astrophysical Journal, Vol. 877, Issue 2 https://doi.org/10.3847/2041-8213/ab2049	journal	May 2019
GROWTH on S190425z: Searching Thousands of Square Degrees to Identify an Optical or Infrared Counterpart to a Binary Neutron Star Merger with the Zwicky Transient Facility and Palomar Gattini-IR Coughlin, Michael W.; Ahumada, Tomás; Anand, Shreya The Astrophysical Journal, Vol. 885, Issue 1 https://doi.org/10.3847/2041-8213/ab4ad8	journal	October 2019
Spiral-wave Wind for the Blue Kilonova Nedora, Vsevolod; Bernuzzi, Sebastiano; Radice, David The Astrophysical Journal, Vol. 886, Issue 2 https://doi.org/10.3847/2041-8213/ab5794	journal	November 2019
GROWTH on S190425z: Searching Thousands of Square Degrees to Identify an Optical or Infrared Counterpart to a Binary Neutron Star Merger with the Zwicky Transient Facility and Palomar Gattini-IR Coughlin, Michael W.; Ahumada, Tomás; Anand, Shreya Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2019-04288	text	January 2019
A kilonova as the electromagnetic counterpart to a gravitational-wave source Smartt, S. J.; Chen, T. -W.; Jerkstrand, A. Nature, Vol. 551, Issue 7678 https://doi.org/10.1038/nature24303	journal	October 2017
The Intermediate r-process in Core-collapse Supernovae Driven by the Magneto-rotational Instability Nishimura, N.; Sawai, H.; Takiwaki, T. IOP Publishing https://doi.org/10.5451/unibas-ep59238	text	January 2017
General relativistic magnetohydrodynamic simulations of binary neutron star mergers forming a long-lived neutron star Ciolfi, Riccardo; Kastaun, Wolfgang; Giacomazzo, Bruno arXiv https://doi.org/10.48550/arxiv.1701.08738	text	January 2017
Signatures of hypermassive neutron star lifetimes on r-process nucleosynthesis in the disk ejecta from neutron star mergers Lippuner, Jonas; Fernández, Rodrigo; Roberts, Luke F. arXiv https://doi.org/10.48550/arxiv.1703.06216	text	January 2017
Impact of ejecta morphology and composition on the electromagnetic signatures of neutron star mergers Wollaeger, Ryan T.; Korobkin, Oleg; Fontes, Christopher J. arXiv https://doi.org/10.48550/arxiv.1705.07084	text	January 2017
Illuminating Gravitational Waves: A Concordant Picture of Photons from a Neutron Star Merger Kasliwal, M. M.; Nakar, E.; Singer, L. P. arXiv https://doi.org/10.48550/arxiv.1710.05436	text	January 2017
A kilonova as the electromagnetic counterpart to a gravitational-wave source Smartt, S. J.; Chen, T. -W.; Jerkstrand, A. arXiv https://doi.org/10.48550/arxiv.1710.05841	text	January 2017
AT2017gfo: an anisotropic and three-component kilonova counterpart of GW170817 Perego, Albino; Radice, David; Bernuzzi, Sebastiano arXiv https://doi.org/10.48550/arxiv.1711.03982	text	January 2017
The universality of the rapid neutron-capture process revealed by a possible disrupted dwarf galaxy star Casey, Andrew R.; Schlaufman, Kevin C. arXiv https://doi.org/10.48550/arxiv.1711.04776	text	January 2017
$r$-process nucleosynthesis in the early Universe through fast mergers of compact binaries in triple systems Bonetti, Matteo; Perego, Albino; Capelo, Pedro R. arXiv https://doi.org/10.48550/arxiv.1801.03506	text	January 2018
A magnetar origin for the kilonova ejecta in GW170817 Metzger, Brian D.; Thompson, Todd A.; Quataert, Eliot arXiv https://doi.org/10.48550/arxiv.1801.04286	text	January 2018
From actinides to zinc: Using the full abundance pattern of the brightest star in Reticulum II to distinguish between different r-process sites Ji, Alexander P.; Frebel, Anna arXiv https://doi.org/10.48550/arxiv.1802.07272	text	January 2018
Optimizing searches for electromagnetic counterparts of gravitational wave triggers Coughlin, Michael W.; Tao, Duo; Chan, Man Leong arXiv https://doi.org/10.48550/arxiv.1803.02255	text	January 2018
Super-Knee Cosmic Rays from Galactic Neutron Star Merger Remnants Kimura, Shigeo S.; Murase, Kohta; Mészáros, Peter arXiv https://doi.org/10.48550/arxiv.1807.03290	text	January 2018
Stochastic Chemical Evolution of Galactic Subhalos and the Origin of r-Process Elements Ojima, Takuya; Ishimaru, Yuhri; Wanajo, Shinya arXiv https://doi.org/10.48550/arxiv.1808.03390	text	January 2018
Physical conditions for the r-process I. radioactive energy sources of kilonovae Wanajo, Shinya arXiv https://doi.org/10.48550/arxiv.1808.03763	text	January 2018
Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts and Nucleosynthesis Radice, David; Perego, Albino; Hotokezaka, Kenta arXiv https://doi.org/10.48550/arxiv.1809.11161	text	January 2018
Viscous-Dynamical Ejecta from Binary Neutron Star Merger Radice, David; Perego, Albino; Hotokezaka, Kenta arXiv https://doi.org/10.48550/arxiv.1809.11163	text	January 2018
Multimessenger Parameter Estimation of GW170817 Radice, David; Dai, Liang arXiv https://doi.org/10.48550/arxiv.1810.12917	text	January 2018
Black hole hyperaccretion inflow-outflow model. II. Long-duration gamma-ray bursts and supernova $\rm ^{56}Ni$ bumps Song, Cui-Ying; Liu, Tong arXiv https://doi.org/10.48550/arxiv.1812.01708	text	January 2018
A new delay time distribution for merging neutron stars tested against Galactic and cosmic data Simonetti, Paolo; Matteucci, Francesca; Greggio, Laura arXiv https://doi.org/10.48550/arxiv.1901.02732	text	January 2019
GW170817$-$the first observed neutron star merger and its kilonova: implications for the astrophysical site of the r-process Siegel, Daniel M. arXiv https://doi.org/10.48550/arxiv.1901.09044	text	January 2019
Equation-of-state Constraints and the QCD Phase Transition in the Era of Gravitational-Wave Astronomy Bauswein, Andreas; Bastian, Niels-Uwe Friedrich; Blaschke, David arXiv https://doi.org/10.48550/arxiv.1904.01306	text	January 2019
The lanthanide fraction distribution in metal-poor stars: a test of neutron star mergers as the dominant r-process site Ji, Alexander P.; Drout, Maria R.; Hansen, Terese T. arXiv https://doi.org/10.48550/arxiv.1905.01814	text	January 2019
Full Transport Model of GW170817-Like Disk Produces a Blue Kilonova Miller, Jonah M.; Ryan, Benjamin R.; Dolence, Joshua C. arXiv https://doi.org/10.48550/arxiv.1905.07477	text	January 2019
Diversity of kilonova light curves Kawaguchi, Kyohei; Shibata, Masaru; Tanaka, Masaomi arXiv https://doi.org/10.48550/arxiv.1908.05815	text	January 2019

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