Equation of state and neutron star properties constrained by nuclear physics and observation

K. Hebeler; J. M. Lattimer; C. J. Pethick; A. Schwenk

doi:10.1088/0004-637X/773/1/11

Equation of state and neutron star properties constrained by nuclear physics and observation

K. Hebeler
, J. M. Lattimer
, C. J. Pethick
, A. Schwenk

Physics and Astronomy

Ohio State University
University of Copenhagen
KTH Royal Institute of Technology
GSI Helmholtz Centre for Heavy Ion Research
Technische Universität Darmstadt

Research output: Contribution to journal › Article › peer-review

699 Scopus citations

Abstract

Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 ± 0.04 M_⊙ neutron star, constrain the equation of state of neutron-rich matter at sub- and supranuclear densities. We discuss in detail the allowed equations of state and the impact of our results on the structure of neutron stars, the crust-core transition density, and the nuclear symmetry energy. In particular, we show that the predicted range for neutron star radii is robust. For use in astrophysical simulations, we provide detailed numerical tables for a representative set of equations of state consistent with these constraints.

Original language	English
Article number	11
Journal	Astrophysical Journal
Volume	773
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/773/1/11
State	Published - Aug 10 2013

Keywords

dense matter
equation of state
stars: neutron

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10.1088/0004-637X/773/1/11

Cite this

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title = "Equation of state and neutron star properties constrained by nuclear physics and observation",

abstract = "Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 ± 0.04 M⊙ neutron star, constrain the equation of state of neutron-rich matter at sub- and supranuclear densities. We discuss in detail the allowed equations of state and the impact of our results on the structure of neutron stars, the crust-core transition density, and the nuclear symmetry energy. In particular, we show that the predicted range for neutron star radii is robust. For use in astrophysical simulations, we provide detailed numerical tables for a representative set of equations of state consistent with these constraints.",

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T1 - Equation of state and neutron star properties constrained by nuclear physics and observation

AU - Hebeler, K.

AU - Lattimer, J. M.

AU - Pethick, C. J.

AU - Schwenk, A.

PY - 2013/8/10

Y1 - 2013/8/10

N2 - Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 ± 0.04 M⊙ neutron star, constrain the equation of state of neutron-rich matter at sub- and supranuclear densities. We discuss in detail the allowed equations of state and the impact of our results on the structure of neutron stars, the crust-core transition density, and the nuclear symmetry energy. In particular, we show that the predicted range for neutron star radii is robust. For use in astrophysical simulations, we provide detailed numerical tables for a representative set of equations of state consistent with these constraints.

AB - Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 ± 0.04 M⊙ neutron star, constrain the equation of state of neutron-rich matter at sub- and supranuclear densities. We discuss in detail the allowed equations of state and the impact of our results on the structure of neutron stars, the crust-core transition density, and the nuclear symmetry energy. In particular, we show that the predicted range for neutron star radii is robust. For use in astrophysical simulations, we provide detailed numerical tables for a representative set of equations of state consistent with these constraints.

KW - dense matter

KW - equation of state

KW - stars: neutron

UR - https://www.scopus.com/pages/publications/84881171443

U2 - 10.1088/0004-637X/773/1/11

DO - 10.1088/0004-637X/773/1/11

M3 - Article

AN - SCOPUS:84881171443

SN - 0004-637X

VL - 773

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 11

ER -

Equation of state and neutron star properties constrained by nuclear physics and observation

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Keywords

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