Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy
文献类型：期刊论文
| 作者 | Chan, Man Ho2; Lee, Chak Man2; Cui, Lang3 ; Chang, Ning3; Leung, Chun Sing1
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| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2024-02-01 |
| 卷号 | 962期号:2页码:141 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad2172 |
| 产权排序 | 2 |
| 英文摘要 | Radio data can give stringent constraints for annihilating dark matter. In general, radio observations can detect very accurate radio flux density with high resolution and different frequencies for nearby galaxies. We are able to obtain the radio flux density as a function of distance from the galactic center and frequencies S(r, nu). In this article, we demonstrate a comprehensive radio analysis of the M33 galaxy, combining the radio flux density profile S(r) and the frequency spectrum S(nu) to get the constraints of dark matter annihilation parameters. By analyzing the archival radio data obtained from the Effelsberg telescope, we show that the dark matter annihilation contributing to the radio flux density might be insignificant in the disk region of the M33 galaxy. Moreover, by including the baryonic radio contribution, we constrain the 2 sigma conservative upper limits of the annihilation cross section, which can be complementary to the existing constraints based on neutrino, cosmic-ray, and gamma-ray observations. Our results indicate that analyzing the galactic multifrequency radio flux profiles can give useful and authentic constraints on dark matter for the leptophilic annihilation channels. |
| WOS关键词 | CONTINUUM SURVEY ; DENSITY PROFILE ; CLUSTERS ; SEARCH |
| 资助项目 | Research Grants Council, University Grants Committee https://doi.org/10.13039/501100002920[EdUHK 18300922] ; Research Grants Council of the Hong Kong Special Administrative Region, China[2022SKA0120102] ; National SKA Program of China[2021-XBQNXZ-005] ; CAS Light of West China Program |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001162938500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Research Grants Council, University Grants Committee https://doi.org/10.13039/501100002920 ; Research Grants Council of the Hong Kong Special Administrative Region, China ; National SKA Program of China ; CAS Light of West China Program |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5821]  |
| 专题 | 星系宇宙学研究团组 |
| 通讯作者 | Chan, Man Ho; Cui, Lang |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Appl Math, Hong Kong, Peoples R China 2.Educ Univ Hong Kong, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chan, Man Ho,Lee, Chak Man,Cui, Lang,et al. Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy[J]. ASTROPHYSICAL JOURNAL,2024,962(2):141. |
| APA | Chan, Man Ho,Lee, Chak Man,Cui, Lang,Chang, Ning,&Leung, Chun Sing.(2024).Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy.ASTROPHYSICAL JOURNAL,962(2),141. |
| MLA | Chan, Man Ho,et al."Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy".ASTROPHYSICAL JOURNAL 962.2(2024):141. |
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