日震学对光偶极子暗物质的约束
Constraint on Light Dipole Dark Matter from Helioseismology
摘要：
研究了非对称暗物质的磁偶极矩在太阳演化中的作用。即使对于光DM，偶极相互作用也可以导致相当大的DM散射截面，并且不对称的暗物质可以导致太阳中的大DM数密度。我们发现，太阳模型的精度测试，作为诊断的声速剖面从日震学数据，排除偶极暗物质粒子的质量大于4.3 GeV和磁偶极矩大于1.6 $\times \;10^{-17}$电子厘米。
英文摘要：
We investigate the effects of a magnetic dipole moment of asymmetric dark matter (DM) in the evolution of the Sun. The dipole interaction can lead to a sizable DM scattering cross section even for light DM, and the asymmetric dark matter can lead to a large DM number density in the Sun. We find that solar model precision tests, using as diagnostic the sound speed profile obtained from helioseismology data, exclude dipolar dark matter particles with a mass larger than 4.3 GeV and magnetic dipole moment larger than 1.6 $\times \;10^{-17}$ e cm.
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