Ambipolar Heating of Magnetars

Abstract

Magnetars, neutron stars thought to be with ultra-strong magnetic fields of $10^{14-15}$ G, are observed to be much hotter than ordinary pulsars with $\sim 10^{12}$ G, and additional heating sources are required. One possibility is heating by the ambipolar diffusion in the stellar core. This scenario is examined by calculating the models using the relativistic thermal evolutionary code without making the isothermal approximation. The results show that this scenario can be consistent with most of the observed magnetar temperature data.

12 pages, 4 figures, 1 table. Accepted by the Astrophysical Journal on February 9, 2023

References in corpus (6)

• Shapiro delay measurement of a two solar mass neutron star
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• Neutrino emission due to Cooper-pair recombination in neutron stars revisited
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Cited by in corpus (1)

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