Knowledge Management System of Institute of Theoretical Physics, CAS
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 Publication | INTERNATIONAL JOURNAL OF MODERN PHYSICS D
 |
| Language | 英语 |
| Keyword | OSCILLATION SPECTROSCOPIC SURVEY STRONG CP PROBLEM SIGNAL LIGHT CONSERVATION INVARIANCE HYDROGEN MATTER EPOCH |
| Abstract | The 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 | |
| ISSN | 0218-2718 |
| Volume | 30Issue:6Pages:2150041 |
| Cooperation Status | 国内 |
| Subject Area | Astronomy & Astrophysics |
| MOST Discipline Catalogue | Astronomy & Astrophysics |
| DOI | 10.1142/S0218271821500413 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27259 |
| Collection | SCI期刊论文 |
| Affiliation | 1.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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| A detailed explorati（1254KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment