Spectral Representations of Neutron-Star Equations of State

Details Spectral Representations of Neutron-Star Equations of State Spectral Representations of Neutron-Star Equations of State

2010-09-03

arxiv.org/abs/1009.0738v2

Phys.Rev.D82:103011,2010

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

10 pages, 8 figures, 2 tables; updated to accepted Phys. Rev. D version

Scientific paper

10.1103/PhysRevD.82.103011

Methods are developed for constructing spectral representations of cold (barotropic) neutron-star equations of state. These representations are faithful in the sense that every physical equation of state has a representation of this type, and conversely every such representation satisfies the minimal thermodynamic stability criteria required of any physical equation of state. These spectral representations are also efficient, in the sense that only a few spectral coefficients are generally required to represent neutron-star equations of state quiet accurately. This accuracy and efficiency is illustrated by constructing spectral fits to a large collection of "realistic" neutron-star equations of state.

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