Institutional Repository of Radio Astronomy Research Laboratory
| Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy | |
Chan, Man Ho1; Lee, Chak Man1; Cui, Lang2 ; Chang, Ning2; Leung, Chun Sing3
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| 2024-02-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 962Issue:2Pages:141 |
| Contribution Rank | 2 |
| Abstract | 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. |
| DOI | 10.3847/1538-4357/ad2172 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | CONTINUUM SURVEY ; DENSITY PROFILE ; CLUSTERS ; SEARCH |
| Funding Project | 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 Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001162938500001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5822 |
| Collection | 射电天文研究室_星系宇宙学研究团组 |
| Corresponding Author | Chan, Man Ho; Cui, Lang |
| Affiliation | 1.Educ Univ Hong Kong, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi, Peoples R China 3.Hong Kong Polytech Univ, Dept Appl Math, Hong Kong, Peoples R China |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Chan-2024-Constraini（1163KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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