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  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. (2020). Equation of state constraints from nuclear physics, neutron star masses, and future moment of inertia measurements. Astrophysical Journal, 901(2): 155. doi:10.3847/1538-4357/abaf55.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0007-7382-4 Version Permalink: https://hdl.handle.net/21.11116/0000-0007-7383-3
Genre: Journal Article

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 Creators:
Greif, S. K., Author
Hebeler, K., Author
Lattimer, J. M., Author
Pethick, C. J., Author
Schwenk, A.1, Author           
Affiliations:
1Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE, Astrophysics, Solar and Stellar Astrophysics, astro-ph.SR,Nuclear Theory, nucl-th
 MPINP: Starke Wechselwirkung und exotische Kerne – Abteilung Blaum
 Abstract: 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.

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 Dates: 2020-10-05
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2005.14164
DOI: 10.3847/1538-4357/abaf55
 Degree: -

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Title: Astrophysical Journal
Source Genre: Journal
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Publ. Info: Chicago, IL : University of Chicago Press for the American Astronomical Society
Pages: - Volume / Issue: 901 (2) Sequence Number: 155 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_2