ITP OpenIR  > SCI期刊论文
Houston, N; Li, C1; Li, TJ; Yang, QL; Zhang, X3,4
Natural Explanation for 21 cm Absorption Signals via Axion-Induced Cooling
Source PublicationPHYSICAL REVIEW LETTERS
Language英语
KeywordCP INVARIANCE PARTICLES
AbstractThe EDGES Collaboration has reported an anomalously strong 21 cm absorption feature corresponding to the era of first star formation, which may indirectly betray the influence of dark matter during this epoch. We demonstrate that, by virtue of the ability to mediate cooling processes while in the condensed phase, a small amount of axion dark matter can explain these observations within the context of standard models of axions and axionlike particles. The EDGES best-fit result favors an axionlike particle mass in the (10, 450) meV range, which can be compressed for the QCD axion to (100, 450) meV in the absence of fine tuning. Future experiments and large scale surveys, particularly the International Axion Observatory (IAXO) and EUCLID, should have the capability to directly test this scenario.
2018
ISSN0031-9007
Volume121Issue:11Pages:111301
Subject AreaPhysics
MOST Discipline CataloguePhysics, Multidisciplinary
DOI10.1103/PhysRevLett.121.111301
Indexed BySCIE
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22819
CollectionSCI期刊论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Jinan Univ, Phys Dept, Siyuan Lab, Guangzhou 510632, Guangdong, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China
5.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Houston, N,Li, C,Li, TJ,et al. Natural Explanation for 21 cm Absorption Signals via Axion-Induced Cooling[J]. PHYSICAL REVIEW LETTERS,2018,121(11):111301.
APA Houston, N,Li, C,Li, TJ,Yang, QL,&Zhang, X.(2018).Natural Explanation for 21 cm Absorption Signals via Axion-Induced Cooling.PHYSICAL REVIEW LETTERS,121(11),111301.
MLA Houston, N,et al."Natural Explanation for 21 cm Absorption Signals via Axion-Induced Cooling".PHYSICAL REVIEW LETTERS 121.11(2018):111301.
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