PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Dark Matter Physics (DM)
Axion-like particles as a solution to an emerging tension in the TeV gamma-ray sky
S. Jacobsen*, C. Blanco, O. Ghosh and T. Linden
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Pre-published on: August 17, 2023
Published on: —
Abstract
Blazars are among the most powerful accelerators in the Universe and are expected to produce a strong TeV gamma-ray flux. The gamma-rays from these blazars may produce cascades by inverse-Compton scattering off intergalactic radiation. The GeV gamma-rays produced by these interactions, make up a large contribution to the IGRB. In a previous paper, Blancos et al. showed that this contribution overproduces the IGRB, indicating that something is effectively quenching the cascade component of the IGRB or that blazars have an intrinsic spectral cutoff that is in tension with observations of local blazars.
DOI: https://doi.org/10.22323/1.444.1446
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