论文标题
重力波的超新星校准
Supernova calibration by gravitational wave
论文作者
论文摘要
哈勃张力是宇宙学中最重要的问题之一。尽管IA型超新星（SNE IA）对哈勃常数的局部测量与宇宙学模型无关，但它们遇到了亮度距离零点校准的问题。具有空间GW检测器的重力波（GWS）的观察可以以高精度测量GW源的光度距离。通过假设大规模的二进制黑洞合并和SNE IA发生在同一宿主星系中，我们研究了GWS通过SNE IA重新校准的光度距离的可能性。然后，我们使用低红移重新校准的SNE IA来确定局部哈勃常数。我们发现，我们至少需要7 sne ia，其亮度距离通过GWS重新校准才能达到局部哈勃常数的2 \％精度。局部哈勃常数的值没有零点校准和模型依赖性的问题，因此结果可以揭示哈勃张力。
Hubble tension is one of the most important problems in cosmology. Although the local measurements on the Hubble constant with Type Ia supernovae (SNe Ia) are independent of cosmological models, they suffer the problem of zero-point calibration of the luminosity distance. The observations of gravitational waves (GWs) with space-based GW detectors can measure the luminosity distance of the GW source with high precision. By assuming that massive binary black hole mergers and SNe Ia occur in the same host galaxy, we study the possibility of re-calibrating the luminosity distances of SNe Ia by GWs. Then we use low-redshift re-calibrated SNe Ia to determine the local Hubble constant. We find that we need at least 7 SNe Ia with their luminosity distances re-calibrated by GWs to reach a 2\% precision of the local Hubble constant. The value of the local Hubble constant is free from the problems of zero-point calibration and model dependence, so the result can shed light on the Hubble tension.
