Combined Constraints on the Equation of State of Dense Neutron-rich Matter from Terrestrial Nuclear Experiments and Observations of Neutron Stars

Zhang, Nai-Bo; Li, Bao-An; Xu, Jun

doi:10.3847/1538-4357/aac027

Combined Constraints on the Equation of State of Dense Neutron-rich Matter from Terrestrial Nuclear Experiments and Observations of Neutron Stars

Journal Article · Tue May 29 00:00:00 EDT 2018 · The Astrophysical Journal (Online)

DOI:https://doi.org/10.3847/1538-4357/aac027· OSTI ID:1542024

Zhang, Nai-Bo ^[1]; Li, Bao-An ^[2]; Xu, Jun ^[3]

Texas A & M Univ., Commerce, TX (United States). Dept. of Physics and Astronomy; Shandong Univ., Weihai (China). Inst. of Space Sciences; DOE/OSTI
Texas A & M Univ., Commerce, TX (United States). Dept. of Physics and Astronomy
Chinese Academy of Sciences (CAS), Shanghai (China). Shanghai Inst. of Applied Physics

Within the parameter space of the equation of state (EOS) of dense neutron-rich matter limited by existing constraints mainly from terrestrial nuclear experiments, we explore how the neutron star maximum mass M _max > 2.01 ± 0.04 M _⊙, radius 10.62 km < R 1.4 < 12.83 km and tidal deformability Λ1.4 ≤ 800 of canonical neutron stars together constrain the EOS of dense neutron-rich nucleonic matter. While the 3D parameter space of K _sym (curvature of nuclear symmetry energy), J _sym, and J 0 (skewness of the symmetry energy and EOS of symmetric nuclear matter, respectively) is narrowed down significantly by the observational constraints, more data are needed to pin down the individual values of K _sym, J _sym, and J ₀. The J ₀ largely controls the maximum mass of neutron stars. Although the EOS with J ₀ = 0 is sufficiently stiff to support neutron stars as massive as 2.37 M _⊙, supporting the hypothetical ones as massive as 2.74 M _⊙ (composite mass of GW170817) requires J ₀ to be larger than its currently known maximum value of about 400 MeV and beyond the causality limit. The upper limit on the tidal deformability of Λ_1.4 = 800 from the recent observation of GW170817 is found to provide upper limits on some EOS parameters consistent with but far less restrictive than the existing constraints of other observables studied.

View Accepted Manuscript (DOE)

Research Organization:: Texas A & M Univ., Commerce, TX (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0009971; SC0013702

OSTI ID:: 1542024

Alternate ID(s):: OSTI ID: 1658225

Journal Information:: The Astrophysical Journal (Online), Journal Name: The Astrophysical Journal (Online) Journal Issue: 2 Vol. 859; ISSN 1538-4357

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Probing the Equation of State of Nuclear Matter via Neutron Star Asteroseismology Sotani, Hajime; Nakazato, Ken'ichiro; Iida, Kei arXiv https://doi.org/10.48550/arxiv.1202.6242	text	January 2012
Constraining the High-Density Behavior of Nuclear Symmetry Energy with the Tidal Polarizability of Neutron Stars Fattoyev, F. J.; Carvajal, J.; Newton, W. G. arXiv https://doi.org/10.48550/arxiv.1210.3402	text	January 2012
Constraining the neutron-proton effective mass splitting using empirical constraints on the density dependence of nuclear symmetry energy around normal density Li, Bao-An; Han, Xiao arXiv https://doi.org/10.48550/arxiv.1304.3368	text	January 2013
A highly resistive layer within the crust of X-ray pulsars limits their spin periods Pons, Jose A.; Viganò, Daniele; Rea, Nanda arXiv https://doi.org/10.48550/arxiv.1304.6546	text	January 2013
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The Fate of the Compact Remnant in Neutron Star Mergers Fryer, Chris L.; Belczynski, Krzysztoff; Ramirez-Ruiz, Enrico arXiv https://doi.org/10.48550/arxiv.1504.07605	text	January 2015
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The Equation of State of Hot, Dense Matter and Neutron Stars Lattimer, James M.; Prakash, M. arXiv https://doi.org/10.48550/arxiv.1512.07820	text	January 2015
Masses, Radii, and Equation of State of Neutron Stars Ozel, Feryal; Freire, Paulo arXiv https://doi.org/10.48550/arxiv.1603.02698	text	January 2016
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Pion Production in Rare Isotope Collisions Tsang, M. B.; Estee, J.; Setiawan, H. arXiv https://doi.org/10.48550/arxiv.1612.06561	text	January 2016
Interdependence of different symmetry energy elements Mondal, C.; Agrawal, B. K.; De, J. N. arXiv https://doi.org/10.48550/arxiv.1708.03846	text	January 2017
The equation of state for dense nucleonic matter from a metamodeling. I. Foundational aspects Margueron, J.; Casali, R. Hoffmann; Gulminelli, F. arXiv https://doi.org/10.48550/arxiv.1708.06894	text	January 2017
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral Collaboration, The LIGO Scientific; Collaboration, The Virgo arXiv https://doi.org/10.48550/arxiv.1710.05832	text	January 2017
Constraining the Maximum Mass of Neutron Stars From Multi-Messenger Observations of GW170817 Margalit, Ben; Metzger, Brian arXiv https://doi.org/10.48550/arxiv.1710.05938	text	January 2017
Modeling GW170817 based on numerical relativity and its implications Shibata, Masaru; Fujibayashi, Sho; Hotokezaka, Kenta arXiv https://doi.org/10.48550/arxiv.1710.07579	text	January 2017
Using gravitational-wave observations and quasi-universal relations to constrain the maximum mass of neutron stars Rezzolla, Luciano; Most, Elias R.; Weih, Lukas R. arXiv https://doi.org/10.48550/arxiv.1711.00314	text	January 2017
Nuclear Matter and its Role in Supernovae, Neutron Stars and Compact Object Binary Mergers Lattimer, James M.; Prakash, Madappa arXiv https://doi.org/10.48550/arxiv.astro-ph/0002203	text	January 2000
Neutron Star Structure and the Equation of State Lattimer, J. M.; Prakash, M. arXiv https://doi.org/10.48550/arxiv.astro-ph/0002232	text	January 2000
Inner edge of neutron-star crust with SLy effective nucleon-nucleon interactions Douchin, F.; Haensel, P. arXiv https://doi.org/10.48550/arxiv.astro-ph/0006135	text	January 2000
The diffusive instability of kaon condensate in neutron star matter Kubis, Sebastian arXiv https://doi.org/10.48550/arxiv.astro-ph/0407530	text	January 2004
The Cooling of Compact Stars Page, Dany; Geppert, Ulrich; Weber, Fridolin arXiv https://doi.org/10.48550/arxiv.astro-ph/0508056	text	January 2005
Neutron Star Observations: Prognosis for Equation of State Constraints Lattimer, James M.; Prakash, Maddapa arXiv https://doi.org/10.48550/arxiv.astro-ph/0612440	text	January 2006
Pulsar Constraints on Neutron Star Structure and Equation of State Link, B.; Epstein, R. I.; Lattimer, J. M. arXiv https://doi.org/10.48550/arxiv.astro-ph/9909146	text	January 1999
Multi-messenger Observations of a Binary Neutron Star Merger Abbott, B. P.; Abbott, R.; Abbott, T. D. Karlsruhe https://doi.org/10.5445/ir/1000075998#verlagsausgabe	text	January 2017
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