Astrophysical Measurement of the Equation of State of Neutron Star Matter

Details Astrophysical Measurement of the Equation of State of Neutron Star Matter Astrophysical Measurement of the Equation of State of Neutron Star Matter

2010-02-16

arxiv.org/abs/1002.3153v2

Phys.Rev.D82:101301,2010

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

replaced with the published version

Scientific paper

10.1103/PhysRevD.82.101301

We present the first astrophysical measurement of the pressure of cold matter above nuclear saturation density, based on recently determined masses and radii of three neutron stars. The pressure at higher densities are below the predictions of equations of state that account only for nucleonic degrees of freedom, and thus present a challenge to the microscopic theory of neutron star matter.

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