Neutron star cooling in transiently accreting low mass binaries: a new tool for probing nuclear matter

被引：0

作者：

Possenti, A ^{[1
]}

Colpi, M ^{[1
]}

Page, D ^{[1
]}

Geppert, U ^{[1
]}

机构：

[1] Osservatorio Bologna, I-40127 Bologna, Italy

来源：

EVOLUTION OF BINARY AND MULTIPLE STAR SYSTEMS: A MEETING IN CELEBRATION OF PETER EGGLETON'S 60TH BIRTHDAY | 2001年 / 229卷

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D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore, using an exact cooling code, the thermal evolution of a neutron star undergoing episodes of intense accretion, alternated by long periods of quiescence (e.g. soft X-ray transients; SXRTs here-on). We find that the soft component of the quiescent luminosity of Aql X-1, 4U 1608-522 and of SAX J1808.4-3658 can be understood as thermal emission from a cooling neutron star with negligible neutrino emission. In the case of Cen X-4 strong neutrino emission from the inner core is necessary to explain the observation: this may indicate that the neutron star of Cen X-4 is heavier than 1.4 Mcircle dot. This study opens the possibility of using the quiescent emission of SXRTs as a tool for probing the core superfluidity in relation to the mass of the neutron star.

引用

页码：483 / 487

页数：5

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