Axion cyclotron emissivity of magnetized white dwarfs and neutron stars

被引:22
作者
Kachelriess, M
Wilke, C
Wunner, G
机构
[1] Theoretische Physik I, Ruhr-Universität Bochum, 780 Bochum
关键词
D O I
10.1103/PhysRevD.56.1313
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The energy loss rate of a magnetized electron gas emitting axions a due to the process e(-)-->e(-)+a is derived for arbitrary magnetic field strength B. Requiring that for a strongly magnetized neutron star the axion luminosity is smaller than the neutrino luminosity we obtain the bound g(ae) less than or similar to 10(-10) for the axion electron coupling constant. This limit is considerably weaker than the bound derived earlier by Borisov and Grishina using the same method. Applying a similar argument to magnetic white dwarf stars results in the more stringent bound g(ae)less than or similar to 9x10(-13)(T/10(7)K)(5/4)(B/10(10)G)(-2), where T is the internal temperature of the white dwarf.
引用
收藏
页码:1313 / 1319
页数:7
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