Constraining the Dark Matter Vacuum Energy Interaction Using the EDGES 21cm Absorption Signal

doi:10.3847/1538-4357/aaeb9c

CORC > 国家天文台 > 中国科学院国家天文台

	Constraining the Dark Matter Vacuum Energy Interaction Using the EDGES 21cm Absorption Signal
	Wang, Yuting 3; Zhao, Gong-Bo 1,2,3
刊名	ASTROPHYSICAL JOURNAL
	2018-12-10
卷号	869 期号:1 页码:5
关键词	cosmology: observations dark energy
ISSN号	0004-637X
DOI	10.3847/1538-4357/aaeb9c
英文摘要	The recent measurement of the global 21 cm absorption signal reported by the Experiment to Detect the Global Epoch of Reionization Signature (EDGES) Collaboration is in tension with the prediction of the.CDM model at a 3.8s significance level. In this work, we report that this tension can be released by introducing an interaction between dark matter and vacuum energy. We perform a model parameter estimation using a combined data set including EDGES and other recent cosmological observations, and find that the EDGES measurement can marginally improve the constraint on parameters that quantify the interacting vacuum, and that the combined data set favors the.CDM at a 68% confidence level. This proof-of-concept study demonstrates the potential power of future 21 cm experiments to constrain the interacting dark energy models.
资助项目	NSFC[1171001024] ; NSFC[11673025] ; National Key Basic Research and Development Program of China[2018YFA0404503] ; Royal Society Newton Advanced Fellowship ; Nebula Talents Program of NAOC ; Young Researcher Grant of NAOC ; University of Portsmouth ; NAOC
WOS关键词	FLUCTUATIONS ; COSMOLOGY ; SAMPLE
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000452703700006
资助机构	NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; Royal Society Newton Advanced Fellowship ; Royal Society Newton Advanced Fellowship ; Nebula Talents Program of NAOC ; Nebula Talents Program of NAOC ; Young Researcher Grant of NAOC ; Young Researcher Grant of NAOC ; University of Portsmouth ; University of Portsmouth ; NAOC ; NAOC ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; Royal Society Newton Advanced Fellowship ; Royal Society Newton Advanced Fellowship ; Nebula Talents Program of NAOC ; Nebula Talents Program of NAOC ; Young Researcher Grant of NAOC ; Young Researcher Grant of NAOC ; University of Portsmouth ; University of Portsmouth ; NAOC ; NAOC ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; Royal Society Newton Advanced Fellowship ; Royal Society Newton Advanced Fellowship ; Nebula Talents Program of NAOC ; Nebula Talents Program of NAOC ; Young Researcher Grant of NAOC ; Young Researcher Grant of NAOC ; University of Portsmouth ; University of Portsmouth ; NAOC ; NAOC ; NSFC ; NSFC ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; Royal Society Newton Advanced Fellowship ; Royal Society Newton Advanced Fellowship ; Nebula Talents Program of NAOC ; Nebula Talents Program of NAOC ; Young Researcher Grant of NAOC ; Young Researcher Grant of NAOC ; University of Portsmouth ; University of Portsmouth ; NAOC ; NAOC
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/23885]
专题	中国科学院国家天文台
通讯作者	Wang, Yuting
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yuting,Zhao, Gong-Bo. Constraining the Dark Matter Vacuum Energy Interaction Using the EDGES 21cm Absorption Signal[J]. ASTROPHYSICAL JOURNAL,2018,869(1):5.
APA	Wang, Yuting,&Zhao, Gong-Bo.(2018).Constraining the Dark Matter Vacuum Energy Interaction Using the EDGES 21cm Absorption Signal.ASTROPHYSICAL JOURNAL,869(1),5.
MLA	Wang, Yuting,et al."Constraining the Dark Matter Vacuum Energy Interaction Using the EDGES 21cm Absorption Signal".ASTROPHYSICAL JOURNAL 869.1(2018):5.