The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission
We investigated the indirect detection of neutralino dark matter using radio observation. By looking at the energy spectrum of relativistic positronelectron, this method may provide us with the upper limit of neutralino dark matter emission. Neutralino dark matter can emit synchrotron emissions due...
保存先:
| 主要な著者: | , , , , , , |
|---|---|
| フォーマット: | 論文 |
| 出版事項: |
Elsevier
2023
|
| 主題: | |
| オンライン･アクセス: | http://eprints.um.edu.my/38434/ |
| タグ: |
タグ追加
タグなし, このレコードへの初めてのタグを付けませんか!
|
| id |
my.um.eprints.38434 |
|---|---|
| record_format |
eprints |
| spelling |
my.um.eprints.384342024-05-07T06:35:40Z http://eprints.um.edu.my/38434/ The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission Sabri, M. R. Mat Abidin, Zamri Zainal Hwang, C. Y. Kiew, C. Y. Asmi, N. Subramaniam, S. Lee, D. A. A. QC Physics We investigated the indirect detection of neutralino dark matter using radio observation. By looking at the energy spectrum of relativistic positronelectron, this method may provide us with the upper limit of neutralino dark matter emission. Neutralino dark matter can emit synchrotron emissions due to the interaction of relativistic positronelectron spectrum energy with the intracluster magnetic field. The synchrotron emission of dark matter highly depends on the dark matter density at the centre of the cluster. By using the cold dark matter model, the density of dark matter can be obtained using NavarroFrenkWhite (NFW), Einasto, Diemer and Kravtsov 2014 (DK14) and Hernquist profiles. Using the observed radio halo emission as the maximum emission (from dark matter and other sources), we constrained the neutralino mass (m(chi)) and neutralino cross-section annihilation <sigma v > () as () constraint lines. We investigated the effect of different profiles on the m(chi)- <sigma v > constraint lines. We also used all the basic annihilation channels for better and stronger constraint lines. Our findings demonstrated the NFW profiles provided us with a good constraint line similarly with previous study. Our results also confirmed that the + and channels provide us with a stronger constraint at = 100 GeV and 1000 GeV, respectively. Overall, our findings are consistent for the constraint lines of all the chosen galaxy clusters namely A119, A2199, A2142, A2744, A478 and A2029. Elsevier 2023-08 Article PeerReviewed Sabri, M. R. Mat and Abidin, Zamri Zainal and Hwang, C. Y. and Kiew, C. Y. and Asmi, N. and Subramaniam, S. and Lee, D. A. A. (2023) The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission. New Astronomy, 102. ISSN 1384-1076, DOI https://doi.org/10.1016/j.newast.2023.102023 <https://doi.org/10.1016/j.newast.2023.102023>. 10.1016/j.newast.2023.102023 |
| institution |
Universiti Malaya |
| building |
UM Library |
| collection |
Institutional Repository |
| continent |
Asia |
| country |
Malaysia |
| content_provider |
Universiti Malaya |
| content_source |
UM Research Repository |
| url_provider |
http://eprints.um.edu.my/ |
| topic |
QC Physics |
| spellingShingle |
QC Physics Sabri, M. R. Mat Abidin, Zamri Zainal Hwang, C. Y. Kiew, C. Y. Asmi, N. Subramaniam, S. Lee, D. A. A. The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission |
| description |
We investigated the indirect detection of neutralino dark matter using radio observation. By looking at the energy spectrum of relativistic positronelectron, this method may provide us with the upper limit of neutralino dark matter emission. Neutralino dark matter can emit synchrotron emissions due to the interaction of relativistic positronelectron spectrum energy with the intracluster magnetic field. The synchrotron emission of dark matter highly depends on the dark matter density at the centre of the cluster. By using the cold dark matter model, the density of dark matter can be obtained using NavarroFrenkWhite (NFW), Einasto, Diemer and Kravtsov 2014 (DK14) and Hernquist profiles. Using the observed radio halo emission as the maximum emission (from dark matter and other sources), we constrained the neutralino mass (m(chi)) and neutralino cross-section annihilation <sigma v > () as () constraint lines. We investigated the effect of different profiles on the m(chi)- <sigma v > constraint lines. We also used all the basic annihilation channels for better and stronger constraint lines. Our findings demonstrated the NFW profiles provided us with a good constraint line similarly with previous study. Our results also confirmed that the + and channels provide us with a stronger constraint at = 100 GeV and 1000 GeV, respectively. Overall, our findings are consistent for the constraint lines of all the chosen galaxy clusters namely A119, A2199, A2142, A2744, A478 and A2029. |
| format |
Article |
| author |
Sabri, M. R. Mat Abidin, Zamri Zainal Hwang, C. Y. Kiew, C. Y. Asmi, N. Subramaniam, S. Lee, D. A. A. |
| author_facet |
Sabri, M. R. Mat Abidin, Zamri Zainal Hwang, C. Y. Kiew, C. Y. Asmi, N. Subramaniam, S. Lee, D. A. A. |
| author_sort |
Sabri, M. R. Mat |
| title |
The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission |
| title_short |
The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission |
| title_full |
The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission |
| title_fullStr |
The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission |
| title_full_unstemmed |
The investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission |
| title_sort |
investigation of dark matter density profiles on the neutralino mass and cross-section annihilation (m(chi)- <sigma v > constraint lines of selected galaxy clusters by considering their synchrotron emission |
| publisher |
Elsevier |
| publishDate |
2023 |
| url |
http://eprints.um.edu.my/38434/ |
| _version_ |
1800082902945366016 |
| score |
13.250246 |