论文标题

观察数据有利于局部空隙吗?

Do the observational data favor a local void?

论文作者

Cai, Rong-Gen, Ding, Jia-Feng, Guo, Zong-Kuan, Wang, Shao-Jiang, Yu, Wang-Wei

论文摘要

$λ$ -Cold-dark-Matter模型从宇宙微波背景观察中推断出的异常膨胀率的不同局部直接测量之间的张力增加可能是新物理学的吸烟枪,即使不是由观察性系统学或局部偏见引起的。我们通过将万神殿样本拟合到局部空隙的局部偏见的先前研究,这与所有参数相对于由不均匀但各向同性的Lema--Tolman-Bondi公制表示的局部空隙的所有参数,其局部偏差。我们的结论优势是先前的研究,即目前对哈勃常数的张力不能仅由局部空隙保存。

The increasing tension between the different local direct measurements of the Hubble expansion rate and that inferred from the Cosmic Microwave Background observation by $Λ$-Cold-Dark-Matter model could be a smoking gun of new physics, if not caused by either observational systematics or local bias. We generalize previous investigation on the local bias from a local void by globally fitting the Pantheon sample over all parameters in the radial profile function of a local void described by an inhomogeneous but isotropic Lemaître-Tolman-Bondi metric with a cosmological constant. Our conclusion strengths the previous studies that the current tension on Hubble constant cannot be saved by a local void alone.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源