Neutron star cooling and pion condensation

Details Neutron star cooling and pion condensation Neutron star cooling and pion condensation

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...431..309u&link_type=abstract

The Astrophysical Journal, Part 1, vol. 431, no. 1, p. 309-320

Astronomy and Astrophysics

Astrophysics

33

Condensation, Cooling Flows (Astrophysics), Neutron Stars, Pions, Stellar Evolution, Stellar Interiors, Astronomical Models, Condensed Matter Physics, Emissivity, Stellar Temperature, Superfluidity

Scientific paper

The nonstandard cooling of a neutron star with the central pion core is explored. By adopting the latest results from the pion condensation theory, neutrino emissivity is calulated for both pure charged pions and a mixture of charged and neutral pions, and the equations of state are constructed for the pion condensate. The effect of superfluidity on cooling is investigated, adopting methods more realistic than in previous studies. Our theoretical models are compared with the currently updated observational data, and possible implications are explored.

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