AXION COOLING OF WHITE-DWARFS

被引：109

作者：

ISERN, J

HERNANZ, M

GARCIABERRO, E

机构：

[1] UNIV POLITECN CATALUNYA,DEPT FIS APLICADA,BARCELONA,SPAIN

[2] INST ESTUDIS CATALANS,ASTROFIS LAB,BARCELONA,SPAIN

[3] UNIV ILLINOIS,DEPT ASTRON,URBANA,IL 61801

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 392卷 / 01期

关键词：

ELEMENTARY PARTICLES; STARS; OSCILLATIONS; WHITE DWARFS;

D O I：

10.1086/186416

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The cooling rate of G117-B15A has been recently measured using asteroseismology techniques. It has been found that it is a factor of 2-6 higher than expected from current theoretical models. As the modifications introduced into the standard models to accommodate such a result seem not to be satisfactory enough, we propose to interpret this high cooling rate in terms of axion emission. We show in this paper that in order to account for the properties of G117-B15A, the mass of the axions should be 0.008(+/- 0.003) cos2 beta eV, a quantity that is compatible with the bounds obtained from red giants and SN 1987A.

引用

页码：L23 / L25

页数：3

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