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Evidence for Heating of Neutron Stars by Magnetic Field Decay

J. A. Pons·B. Link·J. A. Miralles·U. Geppert
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Abstract

We show the existence of a strong trend between neutron star surface temperature and the dipolar component of the magnetic field extending through three orders of field magnitude, a range that includes magnetars, radio-quiet isolated neutron stars, and many ordinary radio pulsars. We suggest that this trend can be explained by the decay of currents in the crust over a time scale of few Myr. We estimate the minimum temperature that a NS with a given magnetic field can reach in this interpretation.

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J. A. Pons, B. Link, J. A. Miralles, U. Geppert. 2007-01-15. Evidence for Heating of Neutron Stars by Magnetic Field Decay. https://doi.org/10.1103/physrevlett.98.071101

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