论文标题
平稳距离的出现和明显的大小在块状宇宙中
Emergence of smooth distance and apparent magnitude in a lumpy Universe
论文作者
论文摘要
观测值的标准解释，例如由一个笨拙宇宙中一个位置制成的IA型超新星的峰值明显大小是基于理想化的Friedmann-Lema- Robertson-Walker SpaceTime。由于不均匀性，通常忽略了由于不均匀性而对此模型进行的所有可能校正。在这里，我们使用了不均匀宇宙中面积距离的最新衍生物的结果来研究IA型超新星型明显幅度的单极和哈勃残差。我们发现，在低红移时，由于观察到的红移中的相对速度扰动，该表观幅度的背景FLRW时空模型会获得校正。我们展示了这种速度扰动如何有助于哈勃残留物的差异，以及它如何影响哈勃流中IA型超新星的绝对幅度的校准。我们还表明，它可以从巴里昂声学振荡和局部测量结果确定哈勃速率中解决张力。
The standard interpretation of observations such as the peak apparent magnitude of Type Ia supernova made from one location in a lumpy Universe is based on the idealised Friedmann-Lemaître Robertson-Walker spacetime. All possible corrections to this model due to inhomogeneities are usually neglected. Here, we use the result from the recent concise derivation of the area distance in an inhomogeneous universe to study the monopole and Hubble residual of the apparent magnitude of Type Ia supernovae. We find that at low redshifts, the background FLRW spacetime model of the apparent magnitude receives corrections due to relative velocity perturbation in the observed redshift. We show how this velocity perturbation could contribute to a variance in the Hubble residual and how it could impact the calibration of the absolute magnitude of the Type Ia supernova in the Hubble flow. We also show that it could resolve the tension in the determination of the Hubble rate from the baryon acoustic oscillation and local measurements.
