Ensembles of unified crust and core equations of state in a nuclear-multimessenger astrophysics environment
Ensembles of unified crust and core equations of state in a nuclear-multimessenger astrophysics environment
复制标题
核多信使天体物理环境中统一地壳和核心状态方程系综
DOI:
10.1140/epja/s10050-022-00710-0
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Sanford, J.
中科院分区:
文献类型:
--
作者:
Newton, W. G.;Balliet, L.;Budimir, S.;Crocombe, G.;Douglas, B.;Head, T.;Langford, Z.;Rivera, L.;Sanford, J.
We present an ensemble of unified neutron star crust and core equations of state, constructed using an extended Skyrme energy density functional through the crust and outer core, and appended by two piecewise polytropes at higher densities. The equations of state are parameterized by the first three coefficients in the density expansion of the symmetry energyJ,Land, the moment of inertia of a 1.338 Mstarand the maximum neutron star mass. We construct an ensemble with uniform priors on all five parameters, and then apply data filters to the ensemble to explore the effect of combining neutron skin data from PREX with astrophysical measurements of radii and tidal deformabilities from NICER and LIGO/VIRGO. Neutron skins are calculated directly using the EDFs. We demonstrate that both the nuclear data and astrophysical data play a role in constraining crust properties such as the mass, thickness and moment of inertia of the crust and the nuclear pasta layers therein, and that astrophysical data better constrainsthan PREX data.
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影响因子:
14.1
作者:
Capano, Collin D.;Tews, Ingo;Reddy, Sanjay
通讯作者:
Reddy, Sanjay
DOI:
10.1140/epja/i2019-12716-4
发表时间:
2018-10
期刊:
The European Physical Journal A
影响因子:
--
作者:
D. Radice;L. Dai
通讯作者:
D. Radice;L. Dai
DOI:
10.1088/1361-6471/ab2c6d
发表时间:
2019
期刊:
Journal of Physics G: Nuclear and Particle Physics
影响因子:
--
作者:
M. Thiel;C. Sfienti;J. Piekarewicz;C. J. Horowitz;M. Vanderhaeghen
通讯作者:
M. Vanderhaeghen
DOI:
10.3847/1538-4357/abaf55
发表时间:
2020-05
期刊:
The Astrophysical Journal
影响因子:
--
作者:
S. K. Greif;K. Hebeler;J. Lattimer;C. Pethick;A. Schwenk
通讯作者:
S. K. Greif;K. Hebeler;J. Lattimer;C. Pethick;A. Schwenk
DOI:
10.1051/epjconf/20159301029
发表时间:
2015-05
期刊:
--
影响因子:
--
作者:
P. Neumann-Cosel
通讯作者:
P. Neumann-Cosel