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Equation of State C...
Equation of State Constraints from Nuclear Physics, Neutron Star Masses, and Future Moment of Inertia Measurements
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- Greif, S. K. (författare)
- Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.;GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany.
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- Hebeler, K. (författare)
- Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.;GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany.
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- Lattimer, J. M. (författare)
- SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
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- Pethick, Christopher J. (författare)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Univ Copenhagen, Niels Bohr Int Acad, Niels Bohr Inst, Blegdamsvej 17, DK-2100 Copenhagen O, Denmark.Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.,Nordiska institutet för teoretisk fysik (Nordita),University of Copenhagen, Denmark
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- Schwenk, A. (författare)
- Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.;GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany.;Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany.
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Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany;GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany. SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. (creator_code:org_t)
- 2020-10-05
- 2020
- Engelska.
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Ingår i: Astrophysical Journal. - : Institute of Physics (IOP). - 0004-637X .- 1538-4357. ; 901:2
- Relaterad länk:
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https://iopscience.i...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Neutron stars
- Nuclear astrophysics
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