论文标题
狮子:月球上的激光干涉仪
LION :Laser Interferometer On the mooN
论文作者
论文摘要
引力波天文学现在已经离开了起步阶段,已成为探测我们宇宙中最暴力现象的重要工具。 Ligo/Wigo-Kagra协作运行基于地面的探测器,涵盖了从10 Hz到KHz政权的频段,同时,Pulsar Pirsing阵列和即将启动LISA任务的频段将涵盖低于0.1 Hz的频率,从而在可检测到的引力波频中留出差距。在这里,我们展示了月球(狮子)引力检测器上的激光干涉仪如何对从次Hz到KHz的频率敏感。我们发现,灵敏度曲线使得狮子可以在宇宙学距离10到100m之间测量质量在10到100m之间的紧凑型二进制,而红移高达Z = 100及以后,具体取决于双轴的自旋和质量比。狮子可以检测具有更高质量的紧凑型物体的二进制组,具有非常大的信噪比,可以帮助我们在宇宙学景观上如何使他们的巨大质量在宇宙学上获得巨大的群体,并且可以详细观察到中等质量比率的距离至少为100 gpc的距离。永不到达Ligo/处女座灵敏度带的紧凑型二进制文件可以在狮子带上花费大量时间,而Lisa频段中存在的来源可以被检测器捡起并观察到直到最后合并。由于狮子以如此较高的信噪比覆盖了Deci-Hertz政权,因此它确实实现了多信使天文学的梦想
Gravitational wave astronomy has now left its infancy and has become an important tool for probing the most violent phenomena in our universe. The LIGO/Virgo-KAGRA collaboration operates ground based detectors which cover the frequency band from 10 Hz to the kHz regime, meanwhile the pulsar timing array and the soon to launch LISA mission will cover frequencies below 0.1 Hz, leaving a gap in detectable gravitational wave frequencies. Here we show how a Laser Interferometer On the mooN (LION) gravitational wave detector would be sensitive to frequencies from sub Hz to kHz. We find that the sensitivity curve is such that LION can measure compact binaries with masses between 10 and 100M at cosmological distances, with redshifts as high as z= 100 and beyond, depending on the spin and the mass ratio of the binaries. LION can detect binaries of compact objects with higher-masses, with very large signal-to-noise ratios, help us tounderstand how supermassive black holes got their colossal masses on the cosmological landscape, and it can observe in detail intermediate-mass ratio inspirals at distances as large as at least 100 Gpc. Compact binaries that never reach the LIGO/Virgo sensitivity band can spend significantamounts of time in the LION band, while sources present in the LISA band can be picked up by the detector and observed until their final merger. Since LION covers the deci-Hertz regime with such large signal-to-noise ratios, it truly achieves the dream of multi messenger astronomy