Implications of the Mass $$M={2.17}_{0.10}^{+0.11}$$ M _{⊙} of PSR J0740+6620 on the Equation of State of Superdense Neutronrich Nuclear Matter
Abstract
We study the implications of the very recently reported mass $$M={2.17}_{0.10}^{+0.11}$$ M_{⊙} of PSR J0740+6620 on the equation of state (EOS) of superdense neutronrich nuclear matter with respect to existing constraints on the EOS based on the mass M = 2.01 ± 0.04 M_{⊙} of PSR J0348+0432, the maximum tidal deformability of GW170817, and earlier results of various terrestrial nuclear laboratory experiments. The lower limit of the skewness J_{0} measuring the stiffness of superdense isospinsymmetric nuclear matter is raised from about 220 MeV to 150 MeV, significantly reducing its current uncertainty range. The lower bound of the highdensity symmetry energy also increases appreciably leading to a rise of the minimum proton fraction in neutron stars at βequilibrium from about 0% to 5% around three times the saturation density of nuclear matter. The difficulties for some of the most widely used and previously well tested model EOSs to simultaneously predict both a maximum mass higher than 2.17 M_{⊙} and a pressure consistent with that extracted from GW170817 present some interesting new challenges for nuclear theories.
 Authors:

 Shandong Univ., Jinan (China)
 Texas A & M Univ., College Station, TX (United States)
 Publication Date:
 Research Org.:
 Texas A & M Univ., Commerce, TX (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), Nuclear Physics (NP)
 OSTI Identifier:
 1611287
 Alternate Identifier(s):
 OSTI ID: 1658242
 Grant/Contract Number:
 SC0009971; SC0013702
 Resource Type:
 Accepted Manuscript
 Journal Name:
 The Astrophysical Journal (Online)
 Additional Journal Information:
 Journal Name: The Astrophysical Journal (Online); Journal Volume: 879; Journal Issue: 2; Journal ID: ISSN 15384357
 Publisher:
 Institute of Physics (IOP)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics
Citation Formats
Zhang, NaiBo, and Li, BaoAn. Implications of the Mass $M={2.17}_{0.10}^{+0.11}$ M ⊙ of PSR J0740+6620 on the Equation of State of Superdense Neutronrich Nuclear Matter. United States: N. p., 2019.
Web. doi:10.3847/15384357/ab24cb.
Zhang, NaiBo, & Li, BaoAn. Implications of the Mass $M={2.17}_{0.10}^{+0.11}$ M ⊙ of PSR J0740+6620 on the Equation of State of Superdense Neutronrich Nuclear Matter. United States. https://doi.org/10.3847/15384357/ab24cb
Zhang, NaiBo, and Li, BaoAn. Wed .
"Implications of the Mass $M={2.17}_{0.10}^{+0.11}$ M ⊙ of PSR J0740+6620 on the Equation of State of Superdense Neutronrich Nuclear Matter". United States. https://doi.org/10.3847/15384357/ab24cb. https://www.osti.gov/servlets/purl/1611287.
@article{osti_1611287,
title = {Implications of the Mass $M={2.17}_{0.10}^{+0.11}$ M ⊙ of PSR J0740+6620 on the Equation of State of Superdense Neutronrich Nuclear Matter},
author = {Zhang, NaiBo and Li, BaoAn},
abstractNote = {We study the implications of the very recently reported mass $M={2.17}_{0.10}^{+0.11}$ M⊙ of PSR J0740+6620 on the equation of state (EOS) of superdense neutronrich nuclear matter with respect to existing constraints on the EOS based on the mass M = 2.01 ± 0.04 M⊙ of PSR J0348+0432, the maximum tidal deformability of GW170817, and earlier results of various terrestrial nuclear laboratory experiments. The lower limit of the skewness J0 measuring the stiffness of superdense isospinsymmetric nuclear matter is raised from about 220 MeV to 150 MeV, significantly reducing its current uncertainty range. The lower bound of the highdensity symmetry energy also increases appreciably leading to a rise of the minimum proton fraction in neutron stars at βequilibrium from about 0% to 5% around three times the saturation density of nuclear matter. The difficulties for some of the most widely used and previously well tested model EOSs to simultaneously predict both a maximum mass higher than 2.17 M⊙ and a pressure consistent with that extracted from GW170817 present some interesting new challenges for nuclear theories.},
doi = {10.3847/15384357/ab24cb},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 879,
place = {United States},
year = {2019},
month = {7}
}
Web of Science
Figures / Tables:
Works referenced in this record:
Constraints on Skyrme equations of state from properties of doubly magic nuclei and ab initio calculations of lowdensity neutron matter
journal, January 2014
 Brown, B. Alex; Schwenk, A.
 Physical Review C, Vol. 89, Issue 1
Neutron star observations: Prognosis for equation of state constraints
journal, April 2007
 Lattimer, J.; Prakash, M.
 Physics Reports, Vol. 442, Issue 16
Neutron Star Tidal Deformabilities Constrained by Nuclear Theory and Experiment
journal, August 2018
 Lim, Yeunhwan; Holt, Jeremy W.
 Physical Review Letters, Vol. 121, Issue 6
Equations of state for supernovae and compact stars
journal, March 2017
 Oertel, M.; Hempel, M.; Klähn, T.
 Reviews of Modern Physics, Vol. 89, Issue 1
A Massive Pulsar in a Compact Relativistic Binary
journal, April 2013
 Antoniadis, J.; Freire, P. C. C.; Wex, N.
 Science, Vol. 340, Issue 6131
Masses, Radii, and the Equation of State of Neutron Stars
journal, September 2016
 Özel, Feryal; Freire, Paulo
 Annual Review of Astronomy and Astrophysics, Vol. 54, Issue 1
GW170817: Measurements of Neutron Star Radii and Equation of State
journal, October 2018
 Abbott, B. P.; Abbott, R.; Abbott, T. D.
 Physical Review Letters, Vol. 121, Issue 16
Constraining the Maximum Mass of Neutron Stars from Multimessenger Observations of GW170817
journal, November 2017
 Margalit, Ben; Metzger, Brian D.
 The Astrophysical Journal, Vol. 850, Issue 2
Colloquium : Measuring the neutron star equation of state using xray timing
journal, April 2016
 Watts, Anna L.; Andersson, Nils; Chakrabarty, Deepto
 Reviews of Modern Physics, Vol. 88, Issue 2
Symmetry Parameter Constraints from a Lower Bound on Neutronmatter Energy
journal, October 2017
 Tews, Ingo; Lattimer, James M.; Ohnishi, Akira
 The Astrophysical Journal, Vol. 848, Issue 2
Constraints on the highdensity nuclear equation of state from the phenomenology of compact stars and heavyion collisions
journal, September 2006
 Klähn, T.; Blaschke, D.; Typel, S.
 Physical Review C, Vol. 74, Issue 3
The Ground State of Matter at High Densities: Equation of State and Stellar Models
journal, November 1971
 Baym, Gordon; Pethick, Christopher; Sutherland, Peter
 The Astrophysical Journal, Vol. 170
Quark meanfield model for nuclear matter with or without bag
journal, February 2019
 Zhu, ZhenYu; Li, Ang; Hu, JinNiu
 Physical Review C, Vol. 99, Issue 2
Asymmetric nuclear matter equation of state
journal, November 1991
 Bombaci, I.; Lombardo, U.
 Physical Review C, Vol. 44, Issue 5
Spinisospin structure and pion condensation in nucleon matter
journal, October 1997
 Akmal, A.; Pandharipande, V. R.
 Physical Review C, Vol. 56, Issue 4
Combined Constraints on the Equation of State of Dense Neutronrich Matter from Terrestrial Nuclear Experiments and Observations of Neutron Stars
journal, May 2018
 Zhang, NaiBo; Li, BaoAn; Xu, Jun
 The Astrophysical Journal, Vol. 859, Issue 2
Nuclear symmetry energy and stability of matter in neutron stars
journal, August 2007
 Kubis, Sebastian
 Physical Review C, Vol. 76, Issue 2
The Equation of State from Observed Masses and Radii of Neutron Stars
journal, September 2010
 Steiner, Andrew W.; Lattimer, James M.; Brown, Edward F.
 The Astrophysical Journal, Vol. 722, Issue 1
Constraining the neutron–proton effective mass splitting using empirical constraints on the density dependence of nuclear symmetry energy around normal density
journal, November 2013
 Li, BaoAn; Han, Xiao
 Physics Letters B, Vol. 727, Issue 13
From Neutron Star Observables to the Equation of State. II. Bayesian Inference of Equation of State Pressures
journal, August 2017
 Raithel, Carolyn A.; Özel, Feryal; Psaltis, Dimitrios
 The Astrophysical Journal, Vol. 844, Issue 2
Recent progress and new challenges in isospin physics with heavyion reactions
journal, August 2008
 Li, B.; Chen, L.; Ko, C.
 Physics Reports, Vol. 464, Issue 46
Tidal deformability of neutron stars with realistic equations of state and their gravitational wave signatures in binary inspiral
journal, June 2010
 Hinderer, Tanja; Lackey, Benjamin D.; Lang, Ryan N.
 Physical Review D, Vol. 81, Issue 12
Imprints of the nuclear symmetry energy on the tidal deformability of neutron stars
journal, May 2019
 Krastev, Plamen G.; Li, BaoAn
 Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 7
A unified equation of state of dense matter and neutron star structure
journal, December 2001
 Douchin, F.; Haensel, P.
 Astronomy & Astrophysics, Vol. 380, Issue 1
On parametrized cold dense matter equationofstate inference
journal, April 2018
 Riley, Thomas E.; Raaijmakers, Geert; Watts, Anna L.
 Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 1
Modeling GW170817 based on numerical relativity and its implications
journal, December 2017
 Shibata, Masaru; Fujibayashi, Sho; Hotokezaka, Kenta
 Physical Review D, Vol. 96, Issue 12
Deducing the nuclearmatter incompressibility coefficient from data on isoscalar compression modes
journal, September 2006
 Shlomo, S.; Kolomietz, V. M.; Colò, G.
 The European Physical Journal A, Vol. 30, Issue 1
Nuclear Symmetry Energy Extracted from Laboratory Experiments
journal, October 2017
 Li, BaoAn
 Nuclear Physics News, Vol. 27, Issue 4
Equation of state for dense nucleon matter
journal, August 1988
 Wiringa, R. B.; Fiks, V.; Fabrocini, A.
 Physical Review C, Vol. 38, Issue 2
Constraining nuclear matter parameters with GW170817
journal, February 2019
 Carson, Zack; Steiner, Andrew W.; Yagi, Kent
 Physical Review D, Vol. 99, Issue 4
Using Gravitationalwave Observations and Quasiuniversal Relations to Constrain the Maximum Mass of Neutron Stars
journal, January 2018
 Rezzolla, Luciano; Most, Elias R.; Weih, Lukas R.
 The Astrophysical Journal, Vol. 852, Issue 2
The nuclear symmetry energy in relativistic BruecknerHartreeFock calculations
journal, December 1987
 Müther, H.; Prakash, M.; Ainsworth, T. L.
 Physics Letters B, Vol. 199, Issue 4
Constraining the highdensity behavior of the nuclear symmetry energy with the tidal polarizability of neutron stars
journal, January 2013
 Fattoyev, F. J.; Carvajal, J.; Newton, W. G.
 Physical Review C, Vol. 87, Issue 1
Constraining the radii of neutron stars with terrestrial nuclear laboratory data
journal, November 2006
 Li, BaoAn; Steiner, Andrew W.
 Physics Letters B, Vol. 642, Issue 56
Do we understand the incompressibility of neutronrich matter?
journal, May 2010
 Piekarewicz, J.
 Journal of Physics G: Nuclear and Particle Physics, Vol. 37, Issue 6
Determination of the Equation of State of Dense Matter
journal, October 2002
 Danielewicz, P. &l.
 Science, Vol. 298, Issue 5598
Diffusive instability of a kaon condensate in neutron star matter
journal, December 2004
 Kubis, Sebastian
 Physical Review C, Vol. 70, Issue 6
Asymmetric Nuclear Matter and Neutron Star Properties
journal, October 1996
 Engvik, L.; Osnes, E.; HjorthJensen, M.
 The Astrophysical Journal, Vol. 469
Tidal Love Numbers of Neutron Stars
journal, April 2008
 Hinderer, Tanja
 The Astrophysical Journal, Vol. 677, Issue 2
Constraints on the skewness coefficient of symmetric nuclear matter within the nonlinear relativistic mean field model
journal, December 2017
 Cai, BaoJun; Chen, LieWen
 Nuclear Science and Techniques, Vol. 28, Issue 12
The equation of state of hot, dense matter and neutron stars
journal, March 2016
 Lattimer, James M.; Prakash, Madappa
 Physics Reports, Vol. 621
The NANOGrav 11year Data Set: Highprecision Timing of 45 Millisecond Pulsars
journal, April 2018
 Arzoumanian, Zaven; Brazier, Adam; BurkeSpolaor, Sarah
 The Astrophysical Journal Supplement Series, Vol. 235, Issue 2
GW170817: Constraining the nuclear matter equation of state from the neutron star tidal deformability
journal, September 2018
 Malik, Tuhin; Alam, N.; Fortin, M.
 Physical Review C, Vol. 98, Issue 3
Extracting nuclear symmetry energies at high densities from observations of neutron stars and gravitational waves
journal, March 2019
 Zhang, NaiBo; Li, BaoAn
 The European Physical Journal A, Vol. 55, Issue 3
How tightly is the nuclear symmetry energy constrained by a unitary Fermi gas?
journal, November 2017
 Zhang, NaiBo; Cai, BaoJun; Li, BaoAn
 Nuclear Science and Techniques, Vol. 28, Issue 12
GW170817, general relativistic magnetohydrodynamic simulations, and the neutron star maximum mass
journal, January 2018
 Ruiz, Milton; Shapiro, Stuart L.; Tsokaros, Antonios
 Physical Review D, Vol. 97, Issue 2
Nuclear Constraints on Properties of Neutron star Crusts
journal, May 2009
 Xu, Jun; Chen, LieWen; Li, BaoAn
 The Astrophysical Journal, Vol. 697, Issue 2
Nuclear matter and its role in supernovae, neutron stars and compact object binary mergers
journal, August 2000
 Lattimer, James M.; Prakash, Madappa
 Physics Reports, Vol. 333334
Hybrid Stars that Masquerade as Neutron Stars
journal, August 2005
 Alford, Mark; Braby, Matt; Paris, Mark
 The Astrophysical Journal, Vol. 629, Issue 2
A twosolarmass neutron star measured using Shapiro delay
journal, October 2010
 Demorest, P. B.; Pennucci, T.; Ransom, S. M.
 Nature, Vol. 467, Issue 7319
Constraints on interquark interaction parameters with GW170817 in a binary strange star scenario
journal, April 2018
 Zhou, EnPing; Zhou, Xia; Li, Ang
 Physical Review D, Vol. 97, Issue 8
Neutron star matter at subnuclear densities
journal, June 1973
 Negele, J. W.; Vautherin, D.
 Nuclear Physics A, Vol. 207, Issue 2
Asymmetric Nuclear Matter and Neutron Star Properties
journal, November 1994
 Engvik, L.; HjorthJensen, M.; Osnes, E.
 Physical Review Letters, Vol. 73, Issue 20
Recent Progress and New Challenges in Isospin Physics with HeavyIon Reactions
text, January 2008
 Li, BaoAn; Chen, LieWen; Ko, Che Ming
 arXiv
Nuclear constraints on properties of neutron star crusts
text, January 2009
 Xu, Jun; Chen, LieWen; Li, BaoAn
 arXiv
Do we understand the incompressibility of neutronrich matter?
text, January 2009
 Piekarewicz, J.
 arXiv
Constraining the HighDensity Behavior of Nuclear Symmetry Energy with the Tidal Polarizability of Neutron Stars
text, January 2012
 Fattoyev, F. J.; Carvajal, J.; Newton, W. G.
 arXiv
Constraining the neutronproton effective mass splitting using empirical constraints on the density dependence of nuclear symmetry energy around normal density
text, January 2013
 Li, BaoAn; Han, Xiao
 arXiv
A Massive Pulsar in a Compact Relativistic Binary
text, January 2013
 Antoniadis, John; Freire, Paulo C. C.; Wex, Norbert
 arXiv
Constraints on Skyrme Equations of State from Properties of Doubly Magic Nuclei and AbInitio Calculations of LowDensity Neutron Matter
text, January 2013
 Brown, B. Alex; Schwenk, A.
 arXiv
The Equation of State of Hot, Dense Matter and Neutron Stars
text, January 2015
 Lattimer, James M.; Prakash, M.
 arXiv
Masses, Radii, and Equation of State of Neutron Stars
text, January 2016
 Ozel, Feryal; Freire, Paulo
 arXiv
Symmetry Parameter Constraints From A Lower Bound On The NeutronMatter Energy
text, January 2016
 Tews, Ingo; Lattimer, James M.; Ohnishi, Akira
 arXiv
From Neutron Star Observables to the Equation of State. II. Bayesian Inference of Equation of State Pressures
text, January 2017
 Raithel, Carolyn A.; Özel, Feryal; Psaltis, Dimitrios
 arXiv
Constraining the Maximum Mass of Neutron Stars From MultiMessenger Observations of GW170817
text, January 2017
 Margalit, Ben; Metzger, Brian
 arXiv
Modeling GW170817 based on numerical relativity and its implications
text, January 2017
 Shibata, Masaru; Fujibayashi, Sho; Hotokezaka, Kenta
 arXiv
Using gravitationalwave observations and quasiuniversal relations to constrain the maximum mass of neutron stars
text, January 2017
 Rezzolla, Luciano; Most, Elias R.; Weih, Lukas R.
 arXiv
The NANOGrav 11year Data Set: Highprecision timing of 45 Millisecond Pulsars
text, January 2018
 Arzoumanian, Zaven; Brazier, Adam; BurkeSpolaor, Sarah
 arXiv
On parametrised cold dense matter equation of state inference
text, January 2018
 Riley, Thomas E.; Raaijmakers, Geert; Watts, Anna L.
 arXiv
Quark meanfield model for nuclear matter with or without bag
text, January 2018
 Zhu, ZhenYu; Li, Ang; Hu, JinNiu
 arXiv
Constraining nuclear matter parameters with GW170817
text, January 2018
 Carson, Zack; Steiner, Andrew W.; Yagi, Kent
 arXiv
Nuclear Matter and its Role in Supernovae, Neutron Stars and Compact Object Binary Mergers
text, January 2000
 Lattimer, James M.; Prakash, Madappa
 arXiv
The diffusive instability of kaon condensate in neutron star matter
text, January 2004
 Kubis, Sebastian
 arXiv
Neutron Star Observations: Prognosis for Equation of State Constraints
text, January 2006
 Lattimer, James M.; Prakash, Maddapa
 arXiv
Hybrid stars that masquerade as neutron stars
text, January 2004
 Alford, Mark; Braby, Matt; Paris, Mark
 arXiv
Constraints on the highdensity nuclear equation of state from the phenomenology of compact stars and heavyion collisions
text, January 2006
 Klahn, T.; Blaschke, D.; Typel, S.
 arXiv
Works referencing / citing this record:
Massradius relation for neutron stars in $f(R)=R+\alpha {R}^{2}$ gravity: A comparison between purely metric and torsion formulations
journal, February 2020
 Feola, P.; Forteza, Xisco Jiménez; Capozziello, S.
 Physical Review D, Vol. 101, Issue 4
Quark star matter at finite temperature
journal, November 2019
 Chu, PengCheng; Zhou, Yi; Li, XiaoHua
 Physical Review D, Vol. 100, Issue 10
Universal behavior of a compact star based upon the gravitational binding energy
journal, December 2019
 Jiang, Rongrong; Wen, Dehua; Chen, Houyuan
 Physical Review D, Vol. 100, Issue 12
Towards understanding astrophysical effects of nuclear symmetry energy
journal, July 2019
 Li, BaoAn; Krastev, Plamen G.; Wen, DeHua
 The European Physical Journal A, Vol. 55, Issue 7
Bayesian Inference of Highdensity Nuclear Symmetry Energy from Radii of Canonical Neutron Stars
journal, October 2019
 Xie, WenJie; Li, BaoAn
 The Astrophysical Journal, Vol. 883, Issue 2
Universal behavior of compact star based upon gravitational binding energy
text, January 2019
 Jiang, Rongrong; Wen, Dehua; Chen, Houyuan
 arXiv
Figures / Tables found in this record: