Research Article
Nucleonic Direct Urca Processes and Cooling of the Massive Neutron Star by Antikaon Condensations
Figure 5
Observational data of 7 pulsars J1357-6429, B1706-44, J0538 + 2817, B2334 + 61, B0656 + 14, B0633 + 1748, and J0357 + 3205 [45] compared with the cooling curves including the protonic superfluids models in cores of NSs. Thick line is for the cooling of a superfluid 1.4 star with = 1.428 K and without and condensed phases.