Uncovering axion-like particles in supernova gamma-ray spectra
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866914673050255360 |
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| author | Calore, Francesca Carenza, Pierluca Eckner, Christopher Giannotti, Maurizio Lucente, Giuseppe Mirizzi, Alessandro Sivo, Francesco |
| author_facet | Calore, Francesca Carenza, Pierluca Eckner, Christopher Giannotti, Maurizio Lucente, Giuseppe Mirizzi, Alessandro Sivo, Francesco |
| contents | A future Galactic Supernova (SN) explosion can lead to a gamma-ray signal induced by ultralight Axion-Like Particles (ALPs) thermally produced in the SN core and converted into high-energy photons in the Galactic magnetic field. The detection of such a signal is in the reach of the Large Area Telescope aboard the \emph{Fermi} Gamma-Ray Space Telescope. The observation of gamma-ray emission from a future SN has a sensitivity to $g_{aγ}\gtrsim 4\times 10^{-13}$ GeV$^{-1}$ for a SN at fiducial distance of $10$ kpc and would allow us to reconstruct the ALP-photon coupling within a factor of $\sim2$, mainly due to the uncertainties on the modeling of the Galactic magnetic field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_03925 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Uncovering axion-like particles in supernova gamma-ray spectra Calore, Francesca Carenza, Pierluca Eckner, Christopher Giannotti, Maurizio Lucente, Giuseppe Mirizzi, Alessandro Sivo, Francesco High Energy Astrophysical Phenomena High Energy Physics - Phenomenology A future Galactic Supernova (SN) explosion can lead to a gamma-ray signal induced by ultralight Axion-Like Particles (ALPs) thermally produced in the SN core and converted into high-energy photons in the Galactic magnetic field. The detection of such a signal is in the reach of the Large Area Telescope aboard the \emph{Fermi} Gamma-Ray Space Telescope. The observation of gamma-ray emission from a future SN has a sensitivity to $g_{aγ}\gtrsim 4\times 10^{-13}$ GeV$^{-1}$ for a SN at fiducial distance of $10$ kpc and would allow us to reconstruct the ALP-photon coupling within a factor of $\sim2$, mainly due to the uncertainties on the modeling of the Galactic magnetic field. |
| title | Uncovering axion-like particles in supernova gamma-ray spectra |
| topic | High Energy Astrophysical Phenomena High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2306.03925 |