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A detailed exploration of the EDGES 21cm absorption anomaly and axion-induced cooling
Li, Chuang1; Houston, Nick2; Li, Tianjun3,4; Yang, Qiaoli5,6; Zhang, Xin7,8
2021-04-15
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS D
ISSN0218-2718
Volume30Issue:06Pages:30
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.
KeywordAxion ALP dark matter 21 cm cosmology
Funding OrganizationWuyi University ; Wuyi University ; CAS President's International Fellowship ; CAS President's International Fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS ; Wuyi University ; Wuyi University ; CAS President's International Fellowship ; CAS President's International Fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS ; Wuyi University ; Wuyi University ; CAS President's International Fellowship ; CAS President's International Fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS ; Wuyi University ; Wuyi University ; CAS President's International Fellowship ; CAS President's International Fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS
DOI10.1142/S0218271821500413
WOS KeywordOSCILLATION SPECTROSCOPIC SURVEY ; STRONG CP PROBLEM ; SIGNAL ; LIGHT ; CONSERVATION ; INVARIANCE ; HYDROGEN ; MATTER ; EPOCH
Language英语
Funding ProjectWuyi University[YJ202011] ; CAS President's International Fellowship ; National Natural Science Foundation of China[11875062] ; National Natural Science Foundation of China[11947302] ; National Natural Science Foundation of China[11875148] ; Key Research Program of Frontier Science, CAS
Funding OrganizationWuyi University ; Wuyi University ; CAS President's International Fellowship ; CAS President's International Fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS ; Wuyi University ; Wuyi University ; CAS President's International Fellowship ; CAS President's International Fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS ; Wuyi University ; Wuyi University ; CAS President's International Fellowship ; CAS President's International Fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS ; Wuyi University ; Wuyi University ; CAS President's International Fellowship ; CAS President's International Fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000645563400003
PublisherWORLD SCIENTIFIC PUBL CO PTE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78079
Collection中国科学院国家天文台
Corresponding AuthorLi, Chuang
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
5.1Inan Univ, Siyuan Lab, Guangzhou 510632, Peoples R China
6.1Inan 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(06):30.
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(06),30.
MLA Li, Chuang,et al."A detailed exploration of the EDGES 21cm absorption anomaly and axion-induced cooling".INTERNATIONAL JOURNAL OF MODERN PHYSICS D 30.06(2021):30.
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