A consistent view of interacting dark energy from multiple CMB probes

被引：28

作者：

Zhai, Yuejia ^{[1
]}

Giare, William ^{[1
]}

van de Bruck, Carsten ^{[1
]}

Di Valentino, Eleonora ^{[1
]}

Mena, Olga ^{[2
]}

Nunes, Rafael C. ^{[3
,4
]}

机构：

[1] Univ Sheffield, Sch Math & Stat, Hounsfield Rd, Sheffield S3 7RH, England

[2] Univ Valencia, Inst Fis Corpuscular IFIC, CSIC, Parc Cientif UV,C Catedrat Jose Beltran 2, E-46980 Paterna, Spain

[3] Univ Fed Rio Grande Do Sul, Inst Fis, Porto Alegre, RS, Brazil

[4] Inst Nacl Pesquisas Espaciais, Div Astrofis, Ave Astronautas 1758, BR-12227010 Sao Jose Dos Campos, SP, Brazil

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2023年 / 07期

关键词：

cosmological parameters from CMBR; dark energy theory; MATTER; INFERENCE; BAYES;

D O I：

10.1088/1475-7516/2023/07/032

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze a cosmological model featuring an interaction between dark energy and dark matter in light of the measurements of the Cosmic Microwave Background released by three independent experiments: the most recent data by the Planck satellite and the Atacama Cosmology Telescope, and WMAP (9-year data). We show that different combinations of the datasets provide similar results, always favoring an interacting dark sector with a 95% C.L. significance in the majority of the cases. Remarkably, such a preference remains consistent when cross-checked through independent probes, while always yielding a value of the expansion rate H0 consistent with the local distance ladder measurements. We investigate the source of this preference by scrutinizing the angular power spectra of temperature and polarization anisotropies as measured by different experiments.

引用

页数：16

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