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- W2945103695 abstract "Using an accurate general-relativistic solution for the external spacetime of a spinning neutron star, we assess for the first time the consistency and reliability of geodesic models of quasiperiodic oscillations~(QPOs), which are observed in the X-ray flux emitted by accreting neutron stars. We analyze three sources: 4U1608-52, 4U0614+09, and 4U1728-34. Our analysis shows that geodesic models based on pairs of high-frequency QPOs, identified with the azimuthal and periastron precession frequencies, provide consistent results. We discuss how observations of QPO doublets can be used to constrain the equation of state of neutron stars in a way complementary to other observations. A combined analysis of the three sources favours neutron stars with mass above two solar masses and relatively stiff equations of state." @default.
- W2945103695 created "2019-05-29" @default.
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- W2945103695 date "2019-05-12" @default.
- W2945103695 modified "2023-09-27" @default.
- W2945103695 title "Can we constrain the neutron-star equation of state from QPO observations?" @default.
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