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TNTYST(KOST2) neutron matter

Abstract

Equation of state (EoS) based on the variational many-body theory with realistic nuclear forces for pure neutron matter is provided. For uniform matter, the EoS is constructed with the cluster variational method starting from the Argonne v18 two-body nuclear potential and the Urbana IX three-body nuclear potential. Non-uniform nuclear matter is treated in the Thomas-Fermi approximation. Alpha particle mixing is also taken into account, see [TNTSYT_17] for details.

Nparam = 2
Particles = n
T min = 1.00e-01
T max = 3.98e+02
T pts = 91
nb min = 7.59e-11
nb max = 6.02e+00
nb pts = 110
Y min = 0.0
Y max = 0.0
Y pts = 1

Nuclear Matter Properties

ns = 0.16 fm-3
E0 = -16.09 Mev
K = 245.0 Mev
K' = 0.0 Mev
J = 30.0 Mev
L = 35.0 Mev
Ksym = 0.0 MeV

Neutron Star Properties

Mmax = 2.21 Msun
MDU,e = 0.0 Msun
RMmax = 10.19 km
R1.4 = 11.54 km

References

References to the original work:
[TNTYST_17]   H. Togashi, K. Nakazato, Y. Takehara, S. Yamamuro, H. Suzuki and M. Takano, Nucl. Phys. A 961, 78 (2017)

Data sheet

eos.pdf

Data

eos.zip (0.73 MB)
eos.zip_checksum.txt
Single files
eos.compo
eos.init
eos.nb
eos.t
eos.thermo
eos.yq
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