Is PSR J0250+5854 at the Hall attractor stage?

TL;DR

This paper suggests that the radio pulsar J0250+5854 is at the Hall attractor stage, explaining its low temperature and lack of magnetar activity through magnetic field decay modeling.

Contribution

It proposes that PSR J0250+5854 is at the Hall attractor stage, providing a model for its magnetic evolution and observational properties.

Findings

Neutron star could have started as a magnetar with 10^{14}-10^{15} G magnetic field.

Model explains low temperature and absence of magnetar activity.

Future observations could test the Hall attractor hypothesis.

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.