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arxiv 2306.03925 v2 pith:I4EFH4GH submitted 2023-06-06 astro-ph.HE hep-ph

Uncovering axion-like particles in supernova gamma-ray spectra

Francesca Calore , Pierluca Carenza , Christopher Eckner , Maurizio Giannotti , Giuseppe Lucente , Alessandro Mirizzi , Francesco Sivo This is my paper
classification astro-ph.HE hep-ph
keywords gamma-raygalacticaxion-likefieldfuturemagneticparticlessignal
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 $g_{a\gamma}\gtrsim 4\times 10^{-13}$ 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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Lights, Camera, Axion: Tracing Axions from Supernovae in the Diffuse $\gamma$-ray Sky

    hep-ph 2026-04 unverdicted novelty 7.0

    Axions produced in supernovae generate a diffuse gamma-ray signal through conversion in magnetic fields, yielding competitive constraints on the axion-photon coupling from COMPTEL, EGRET, and Fermi-LAT data plus forec...

  2. Reappraisal of the Constraints on Heavy Axion-like Particles from Gamma-Ray Bursts

    hep-ph 2026-07 conditional novelty 5.0

    Realistic GRB parameters weaken previous ALP cooling bounds, but ALP-induced secondary fireballs in GRBs could still be probed via isotropic X-ray emission from future telescopes.