论文标题
Ligo波段重力波的太阳衍射
Solar Diffraction of LIGO-Band Gravitational Waves
论文作者
论文摘要
我们表明，由于其Fresnel Length的巧合$ r_f \ propto \ sqrt {1 \ \，{\ rm au}/f} $和solar rad radius $ r_ \ odod $ r_ \ odoot。该太阳衍射是通过其频率依赖性的波动来检测到的，尽管事件速率较低。我们还主张太阳衍射允许探测频率频率演变的内部太阳能轮廓。在整个过程中，我们从镜头的简单收敛和剪切方面开发了衍射镜头，并强调了高频制度的相关性，包括合并和响声阶段以进行检测。这项工作不仅通过持续和未来的Ligo波段任务提供了一个有趣的机会，而且还发展了宇宙中长波长波的衍射镜头。类似的现象也可以帮助发现续集中研究的非偏见性波暗物质。
We show that chirping gravitational waves in the LIGO frequency band $f=1 - 5000$ Hz can be gravitationally diffracted by the Sun, due to the coincidence of its Fresnel length $r_F \propto \sqrt{1\, {\rm AU}/f}$ and the solar radius $r_\odot$. This solar diffraction is detectable through its frequency-dependent amplification of the wave, albeit with low event rates. We also advocate that solar diffraction allows probing the inner solar profile with the chirping evolution of frequencies. Along the course, we develop diffractive lensing in terms of simple convergence and shear of a lens and emphasize the relevance of high-frequency regimes including merger and ringdown phases for detection. This work not only presents an interesting opportunity with ongoing and future LIGO-band missions but also develops the diffractive lensing of long-wavelength waves in the universe. A similar phenomenon can also help discover non-relativistic wave dark matter, as studied in a sequel.
