Constraining Axion-Like Particles from observations of AGN B2 2234+28A and 3C 454.3
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866916479430033408 |
|---|---|
| author | Chen, Yu-Chong Chen, Siyu Huang, Wei-Cong Yang, Qing Zhang, Hong-Hao |
| author_facet | Chen, Yu-Chong Chen, Siyu Huang, Wei-Cong Yang, Qing Zhang, Hong-Hao |
| contents | Axion-photon oscillation effect provides a possible explanation for the presence of very-high-energy (VHE) $γ$-ray signals from distant sources. In this work, we propose a model-dependent method to select possible sources that may give sufficient constraints on the axion parameters. We investigate such effect in the spectra of active galactic nuclei (AGN) B2 2234+28A and 3C 454.3 based on data obtained from Fermi Large Area Telescope (Fermi-LAT) and MAGIC U.L. We utilize the Markov Chain Monte Carlo method to fit the axion parameters, yielding a result of $g_{aγ}=3.05^{+0.51}_{-0.31} \times 10^{-11}$ GeV$^{-1}$ for the axion-photon coupling strength and $m_{a}=5.25^{+2.35}_{-2.65} \times 10^{-8} $ eV for the axion mass. We also perform 95\% confidence level (CL) constraints to set an upper limit for $g_{aγ}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_08577 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Constraining Axion-Like Particles from observations of AGN B2 2234+28A and 3C 454.3 Chen, Yu-Chong Chen, Siyu Huang, Wei-Cong Yang, Qing Zhang, Hong-Hao High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology Axion-photon oscillation effect provides a possible explanation for the presence of very-high-energy (VHE) $γ$-ray signals from distant sources. In this work, we propose a model-dependent method to select possible sources that may give sufficient constraints on the axion parameters. We investigate such effect in the spectra of active galactic nuclei (AGN) B2 2234+28A and 3C 454.3 based on data obtained from Fermi Large Area Telescope (Fermi-LAT) and MAGIC U.L. We utilize the Markov Chain Monte Carlo method to fit the axion parameters, yielding a result of $g_{aγ}=3.05^{+0.51}_{-0.31} \times 10^{-11}$ GeV$^{-1}$ for the axion-photon coupling strength and $m_{a}=5.25^{+2.35}_{-2.65} \times 10^{-8} $ eV for the axion mass. We also perform 95\% confidence level (CL) constraints to set an upper limit for $g_{aγ}$. |
| title | Constraining Axion-Like Particles from observations of AGN B2 2234+28A and 3C 454.3 |
| topic | High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2411.08577 |