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EQUATION OF STATE AND NEUTRON STAR PROPERTIES CONSTRAINED BY NUCLEAR PHYSICS AND OBSERVATION
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). Niels Bohr Institute, University of Copenhagen.
2013 (English)In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 773, no 1, 11- p.Article in journal (Refereed) Published
Abstract [en]

Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 +/- 0.04 M-circle dot neutron star, constrain the equation of state of neutron-rich matter at sub-and supranuclear densities. We discuss in detail the allowed equations of state and the impact of our results on the structure of neutron stars, the crust-core transition density, and the nuclear symmetry energy. In particular, we show that the predicted range for neutron star radii is robust. For use in astrophysical simulations, we provide detailed numerical tables for a representative set of equations of state consistent with these constraints.

Place, publisher, year, edition, pages
2013. Vol. 773, no 1, 11- p.
Keyword [en]
dense matter, equation of state, stars: neutron
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:su:diva-93297DOI: 10.1088/0004-637X/773/1/11ISI: 000322531900011OAI: oai:DiVA.org:su-93297DiVA: diva2:646127
Note

AuthorCount:4;

Available from: 2013-09-06 Created: 2013-09-06 Last updated: 2017-12-06Bibliographically approved

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Pethick, Cristopher J.
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