Equation of state constraints from nuclear physics, neutron star masses, and 
future moment of inertia measurements

Greif, S. K.; Hebeler, K.; Lattimer, J. M.; Pethick, C. J.; Schwenk, A.

doi:10.3847/1538-4357/abaf55

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Equation of state constraints from nuclear physics, neutron star masses, and future moment of inertia measurements

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Schwenk, A.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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2005.14164.pdf
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引用

Greif, S. K., Hebeler, K., Lattimer, J. M., Pethick, C. J., & Schwenk, A. (2020). Equation of state constraints from nuclear physics, neutron star masses, and future moment of inertia measurements. Astrophysical Journal, 901(2):. doi:10.3847/1538-4357/abaf55.

引用: https://hdl.handle.net/21.11116/0000-0007-7382-4

要旨

We explore constraints on the equation of state (EOS) of neutron-rich matter
based on microscopic calculations up to nuclear densities and observations of
neutron stars. In a previous work we showed that predictions based on modern
nuclear interactions derived within chiral effective field theory and the
observation of two-solar-mass neutron stars result in a robust uncertainty
range for neutron star radii and the EOS over a wide range of densities. In
this work we extend this study, employing both the piecewise polytrope
extension from Hebeler et al. as well as the speed of sound model of Greif et
al., and show that moment of inertia measurements of neutron stars can
significantly improve the constraints on the EOS and neutron star radii.