NEUTRON-STAR COOLING AND PION-CONDENSATION

被引：48

作者：

UMEDA, H

NOMOTO, K

TSURUTA, S

MUTO, T

TATSUMI, T

机构：

[1] UNIV TOKYO,FAC SCI,DEPT ASTRON,TOKYO 113,JAPAN

[2] MONTANA STATE UNIV,DEPT PHYS,BOZEMAN,MT 59717

[3] KYOTO UNIV,DEPT PHYS,KYOTO 606,JAPAN

来源：

ASTROPHYSICAL JOURNAL | 1994年 / 431卷 / 01期

关键词：

DENSE MATTER; STARS; INTERIORS; NEUTRON; X-RAYS;

D O I：

10.1086/174487

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 calculated 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.

引用

页码：309 / 320

页数：12