Equation of state of dense matter and maximum rotation frequency of neutron stars.

Details Equation of state of dense matter and maximum rotation frequency of neutron stars. Equation of state of dense matter and maximum rotation frequency of neutron stars.

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...296..745h&link_type=abstract

Astronomy and Astrophysics, v.296, p.745

Astronomy and Astrophysics

Astrophysics

33

Dense Matter, Stars: Neutron, Pulsars: General-Equation Of State

Scientific paper

Maximum rotation frequency of uniformly rotating neutron star models, determined by the mass shedding condition, {OMEGA}_max_, has been calculated using a high precision numerical method, for a large set of equations of state of dense matter. The values of {OMEGA}_max_ for the subset of equations of state, which are causal within neutron star models, are fitted, within a few percent, by an empirical formula {OMEGA}_max_=~0.77x10^4^s^-1^(M_s_/Msun_)^1/2^(R_s_/10km)^-3/2^, where M_s_, R_s_ are mass and radius of the maximum allowable mass configuration of non-rotating models. Systematic deviations from empirical formula are correlated with stiffness of the equation of state of dense matter.

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