Running Hubble tension and a H0 diagnostic

被引：108

作者：

Krishnan, C. ^{[1
]}

Colgain, E. O. ^{[2
,3
]}

Sheikh-Jabbari, M. M. ^{[4
]}

Yang, Tao ^{[2
]}

机构：

[1] Indian Inst Sci, Ctr High Energy Phys, Bangalore 560012, Karnataka, India

[2] Postech, Asia Pacific Ctr Theoret Phys, Pohang 37673, South Korea

[3] Postech, Dept Phys, Pohang 37673, South Korea

[4] Inst Res Fundamental Sci IPM, Sch Phys, POB 19395-5531, Tehran, Iran

来源：

PHYSICAL REVIEW D | 2021年 / 103卷 / 10期

基金：

美国国家科学基金会;

关键词：

DARK ENERGY; CONSTANT; MODEL; H-0; CONSTRAINTS; EVOLUTION; LIGHT;

D O I：

10.1103/PhysRevD.103.103509

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Hubble tension is routinely presented as a mismatch between the Hubble constant H-0 determined locally and a value inferred from the flat.CDM cosmology. In essence, the tension boils down to a disagreement between two numbers. Here, assuming the tension is cosmological in origin, we predict that within flat Lambda CDM there should be other inferred values of H-0, and that a "running of H-0 with redshift" can be expected. These additional determinations of H-0 may be traced to a difference between the effective equation of state (EoS) of the Universe within the Friedmann-Lemaitre-Robertson-Walker (FLRW) cosmology framework and the current standard model. We introduce a diagnostic that flags such a running of H-0.

引用

页数：8

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