The nucleonic thermal conductivity of “pastas” in neutron star matter

DORSO, C.O.; STRACHAN, A.; FRANK, G.A.

NUCLEAR PHYSICS A

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2020 vol. 1002

0375-9474

This investigation explores the nucleonic thermal conductivity of nuclear star matter as it undergoes the ?topological? transition to the ?pasta? regime, and further down to the solid-liquid phase transition. The study was carried out using molecular dynamics simulations with nuclear potentials embedded in an effective (i.e. Thomas-Fermi) Coulomb potential. The nucleonic thermal conductivity experiences a dramatic change within a narrow temperature interval around T=1MeV. This change accompanies the ?pasta? breakdown during a heating process. The nucleonic thermal conductivity, by flipping protons´ or neutrons´ velocity, further shows a decoupling for asymmetric nuclear star matter.