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تسجيل مستخدم جديدIs PSR J0250+5854 at the Hall attractor stage?
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تأليف
A.P. Igoshev
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In this note we propose that recently discovered radio pulsar J0250+5854 with 23.5 sec spin period is presently at the Hall attractor stage. This can explain low temperature and absence of magnetar-like activity of this source together with its spin period and period derivative. We present results of calculations of the evolution of this source in a simple model of magnetic field decay. The neutron star could start its evolution as a magnetar with initial field $sim 10^{14}-10^{15}$ G for realistic range of parameter $Q$ describing crust imperfections. Future measurements of surface temperature and age of this neutron star might help to probe this hypothesis.
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We apply theoretical spin-down models of magnetospheric evolution and magnetic field decay to simulate the possible evolution of PSR J0250+5854, which is the slowest-spinning radio pulsar detected to date. Considering the alignment of inclination ang
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