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arXiv · 2010.03916

Nuclear Pairing Gaps and Neutron Star Cooling

Jin-Biao Wei·Fiorella Burgio·Hans-Josef Schulze
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Abstract

We study the cooling of isolated neutron stars with particular regard to the importance of nuclear pairing gaps. A microscopic nuclear equation of state derived in the Brueckner-Hartree-Fock approach is used together with compatible neutron and proton pairing gaps. We then study the effect of modifying the gaps on the final deduced neutron star mass distributions. We find that a consistent description of all current cooling data can be achieved and a reasonable neutron star mass distribution can be predicted employing the (slightly reduced by about 40\%) proton 1S0 Bardeen-Cooper-Schrieffer (BCS) gaps and no neutron 3P2 pairing.

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Jin-Biao Wei, Fiorella Burgio, Hans-Josef Schulze. 2020-10-08. Nuclear Pairing Gaps and Neutron Star Cooling. https://doi.org/10.3390/universe6080115

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