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arXiv 1606.05965astro-ph.COgr-qchep-phhep-th
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暗能量如何用哈勃常数的局部确定来代替\textit{Planck}

How the Dark Energy Can Reconcile \textit{Planck} with Local Determination of the Hubble Constant

Qing-Guo Huang, Ke Wang

摘要:

本文通过对暗能量的不同模拟,试图调和哈勃常数的局部2.4%确定与由$\textit{Planck}$ CMB数据和BAO数据确定的全局值之间的矛盾。我们发现,在红移分仓的暗能量模型中,$Δχ^2_\text{all}=-6.76$显著降低了卡方,其中暗能量状态方程的$68\%$极限为$w(0\leq z\leq 0.1)=-1.958_{-0.508}^{+0.509}$,$w(0.1< z\leq 1.5)=-1.006_{-0.082}^{+0.092}$,这里$w(z>1.5)$固定为$-1$。

英文摘要:

We try to reconcile the tension between the local 2.4\% determination of Hubble constant and its global determination by $\textit{Planck}$ CMB data and BAO data through modeling the dark energy variously. We find that the chi-square is significantly reduced by $Δχ^2_\text{all}=-6.76$ in the redshift-binned dark energy model where the $68\%$ limits of the equation of state of dark energy read $w(0\leq z\leq 0.1)=-1.958_{-0.508}^{+0.509}$, $w(0.1< z\leq 1.5)=-1.006_{-0.082}^{+0.092}$, and here $w(z>1.5)$ is fixed to $-1$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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