论文标题
CMB光谱扭曲在哈勃张力中的作用:原理证明
The role of CMB spectral distortions in the Hubble tension: a proof of principle
论文作者
论文摘要
尽管已经提出了$λ$ CDM模型的早期和晚期修改来解决哈勃张力,但引人入胜的论点表明,要成功的解决方案,需要在重组之前修改宇宙的扩张历史。这大大提高了精确的CMB观测值的重要性,在这封信中,我们提出了CMB光谱扭曲的论点,突出了它们在约束模型中的潜在作用,这些模型引入了标准$λ$ CDM参数(例如标量频谱索引),以解决疑虑的笨拙的张力。
Although both early and late-time modifications of the $Λ$CDM model have been proposed to address the Hubble tension, compelling arguments suggest that for a solution to be successful it needs to modify the expansion history of the universe prior to recombination. This greatly increases the importance of precise CMB observations, and in this letter we make the argument for CMB spectral distortions, highlighting their potential role in constraining models that introduce significant shifts in the standard $Λ$CDM parameters, such as the scalar spectral index, in attempt to solve the Hubble tension.