Radiative corrections to the neutron star mass inferred from QPO\n frequencies
M. A. AbramowiczDepartment of Physics, Göteborg University, SE-412 96, Göteborg, SwedenW. KluźniakNicolaus Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, 00‐716 Warszawa, PolandWenfei YuShanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai, 200030, China
2011
ABI
Abstract
The frequencies of kHz QPOs are widely interpreted as being indicative of the\nvalues of characteristic frequencies related to orbital motion around neutron\nstars, e.g., the radial epicyclic frequency. In regions directly exposed to the\nradiation from the luminous neutron star these frequencies change with the\nluminosity. Including radiative corrections will change the neutron star mass\nvalue inferred from the QPO frequencies. Radiative forces may also be behind\nthe puzzling phenomenon of parallel tracks.\n
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