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Spin evolution of long-period X-ray pulsars |
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| Authors: | N R Ikhsanov Yu S Likh N G Beskrovnaya |
| Institution: | 1. Central (Pulkovo) Astronomical Observatory, Russian Academy of Sciences, Pulkovskoe Shosse 65-1, St. Petersburg, 196140, Russia 2. St. Petersburg State University, Universitetskii pr. 28, Staryi Peterhof, St. Petersburg, 198504, Russia |
| Abstract: | The spin evolution of X-ray pulsars in high-mass X-ray binaries is discussed under various assumptions about the geometry and physical parameters of the accretion flow. The torque applied to the neutron star by the accretion flow and the equilibrium periods of the pulsars are estimated. It is shown that the observed spin evolution of the pulsars can be explained in a scenario in which the neutron star accretes material from a magnetized stellar wind. |
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