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arXiv · 1809.07968

Is PSR J0250+5854 at the Hall attractor stage?

A. P. Igoshev·S. B. Popov
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Abstract

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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A. P. Igoshev, S. B. Popov. 2018-09-21. Is PSR J0250+5854 at the Hall attractor stage?. https://doi.org/10.3847/2515-5172%2Faae207

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