2021
DOI: 10.48550/arxiv.2110.14039
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Fast cooling and internal heating in hyperon stars

F. Anzuini,
A. Melatos,
C. Dehman
et al.

Abstract: Neutron star models with maximum mass close to 2 𝑀 reach high central densities, which may activate nucleonic and hyperon direct Urca neutrino emission. To alleviate the tension between fast theoretical cooling rates and thermal luminosity observations of moderately magnetized, isolated thermally-emitting stars (with 𝐿 𝛾 10 31 erg s βˆ’1 at 𝑑 10 5.3 yr), some internal heating source is required. The power supplied by the internal heater is estimated for both a phenomenological source in the inner crust and J… Show more

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