Cooling neutron stars with localized protons
Abstract
Description
We analyze cooling of neutron stars, assuming the presence of localized protons in the densest region of their cores. Choosing a single threshold density for proton localization and adjusting neutron star mass, we reproduce the observational data on effective surface temperatures of Vela and PSR 0656+14, with or without an accreted hydrogen envelope. However, the presence of a tiny hydrogen envelope is mandatory, in this model, for reproducing the Geminga data.
5 pages, 3 figures, latex, uses aa.cls, to be published in Astronomy and Astrophysics
5 pages, 3 figures, latex, uses aa.cls, to be published in Astronomy and Astrophysics