Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy
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 galac...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad2172 |
| _version_ | 1797306740086145024 |
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| author | Man Ho Chan Chak Man Lee Lang Cui Ning Chang Chun Sing Leung |
| author_facet | Man Ho Chan Chak Man Lee Lang Cui Ning Chang Chun Sing Leung |
| author_sort | Man Ho Chan |
| collection | DOAJ |
| description | 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 , ν ). 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 ( ν ) 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 σ 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. |
| first_indexed | 2024-03-08T00:46:13Z |
| format | Article |
| id | doaj.art-8783fc3a06ee42d7b326b92254d5936a |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-08T00:46:13Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-8783fc3a06ee42d7b326b92254d5936a2024-02-15T09:41:16ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-01962214110.3847/1538-4357/ad2172Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 GalaxyMan Ho Chan0https://orcid.org/0000-0001-5088-9117Chak Man Lee1Lang Cui2Ning Chang3Chun Sing Leung4Department of Science and Environmental Studies, The Education University of Hong Kong , Tai Po, Hong Kong, People's Republic of China ; chanmh@eduhk.hkDepartment of Science and Environmental Studies, The Education University of Hong Kong , Tai Po, Hong Kong, People's Republic of China ; chanmh@eduhk.hkXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, People's Republic of China ; cuilang@xao.ac.cnXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, People's Republic of China ; cuilang@xao.ac.cnDepartment of Applied Mathematics, Hong Kong Polytechnic University , Hong Kong, People's Republic of ChinaRadio 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 , ν ). 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 ( ν ) 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 σ 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.https://doi.org/10.3847/1538-4357/ad2172Dark matter |
| spellingShingle | Man Ho Chan Chak Man Lee Lang Cui Ning Chang Chun Sing Leung Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy The Astrophysical Journal Dark matter |
| title | Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy |
| title_full | Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy |
| title_fullStr | Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy |
| title_full_unstemmed | Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy |
| title_short | Constraining Annihilating Dark Matter Using the Multifrequency Radio Flux Profiles of the M33 Galaxy |
| title_sort | constraining annihilating dark matter using the multifrequency radio flux profiles of the m33 galaxy |
| topic | Dark matter |
| url | https://doi.org/10.3847/1538-4357/ad2172 |
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