Roncadelli, M. (2017) Is there any need for axion-like particles to explain the signal from blazars? Il nuovo cimento C, 40 (3). pp. 1-5. ISSN 1826-9885
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Abstract
We briefly outline the main effects due to axion-like particles (ALPs) in high-energy astrophysics. Chiefly among them is a substantial reduction of the cosmic opacity in the very-high-energy (VHE) range, a simple explanation of the VHE emission of flat spectrum radio quasars, a straightforward solution of the spectral anomaly for VHE flaring blazars and polarization effects. Amazingly, all this is achieved for the same realistic choice of the model parameters, a fact that provides a strong hint of the existence of an extremely light ALP. Remarkably, its existence can be checked not only by astrophysical observations but also in laboratory experiments.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 17 Nov 2020 09:50 |
| Last Modified: | 17 Nov 2020 09:50 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19940 |
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