期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.161102
关键词
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资金
- NSERC
- U.S. DOE [DE-AC02-87ER40317]
- Helmholtz Association [HA216/EMMI]
- NRC Canada
We show that microscopic calculations based on chiral effective field theory interactions constrain the properties of neutron-rich matter below nuclear densities to a much higher degree than is reflected in commonly used equations of state. Combined with observed neutron star masses, our results lead to a radius R = 9.7-13.9 km for a 1.4M(circle dot) star, where the theoretical range is due, in about equal amounts, to uncertainties in many-body forces and to the extrapolation to high densities.
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