ITP OpenIR  > SCI期刊论文
Li, Chuang; Houston, Nick1; Li, Tianjun2,3; Yang, Qiaoli4,5; Zhang, Xin6,7
A detailed exploration of the EDGES 21cm absorption anomaly and axion-induced cooling
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS D
Language英语
KeywordOSCILLATION SPECTROSCOPIC SURVEY STRONG CP PROBLEM SIGNAL LIGHT CONSERVATION INVARIANCE HYDROGEN MATTER EPOCH
AbstractThe EDGES collaboration's observation of an anomalously strong 21 cm absorption feature around the cosmic dawn era has energised the cosmological community by suggesting a novel signature of dark matter in the cooling of cosmic hydrogen. In a recent paper, we have argued that by virtue of the ability to mediate cooling processes whilst in the condensed phase, a small amount of axion dark matter can explain these observations within the context of Standard Models of axions and axion-like particles. These axions and axion-like particles (ALPs) can thermalise through gravitational self-interactions and so eventually form a Bose-Einstein condensate (BEC), whereupon large-scale long-range correlation can produce experimentally observable signals such as these. In this context, the EDGES best-fit result favours an ALP mass in the (6, 400) meV range. Future experiments and galaxy surveys, particularly the International Axion Observatory (IAXO) and EUCLID, should have the capability to directly test this scenario. In this paper, we will explore this mechanism in detail and give more thorough computational details of certain key points.
2021
ISSN0218-2718
Volume30Issue:6Pages:2150041
Cooperation Status国内
Subject AreaAstronomy & Astrophysics
MOST Discipline CatalogueAstronomy & Astrophysics
DOI10.1142/S0218271821500413
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27259
CollectionSCI期刊论文
Affiliation1.Wuyi Univ, Coll Mech & Elect Engn, Nanping 354300, Peoples R China
2.Beijing Univ Technol, Fac Sci, Beijing 100124, Peoples R China
3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
5.Jinan Univ, Siyuan Lab, Guangzhou 510632, Peoples R China
6.Jinan Univ, Phys Dept, Guangzhou 510632, Peoples R China
7.Chinese Acad Sci, Natl Astron Observ, Key Lab Computat Astrophys, Beijing 100012, Peoples R China
8.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Chuang,Houston, Nick,Li, Tianjun,et al. A detailed exploration of the EDGES 21cm absorption anomaly and axion-induced cooling[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D,2021,30(6):2150041.
APA Li, Chuang,Houston, Nick,Li, Tianjun,Yang, Qiaoli,&Zhang, Xin.(2021).A detailed exploration of the EDGES 21cm absorption anomaly and axion-induced cooling.INTERNATIONAL JOURNAL OF MODERN PHYSICS D,30(6),2150041.
MLA Li, Chuang,et al."A detailed exploration of the EDGES 21cm absorption anomaly and axion-induced cooling".INTERNATIONAL JOURNAL OF MODERN PHYSICS D 30.6(2021):2150041.
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