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Extragalactic optical-infrared background radiation, its time evolution and the cosmic photon-photon opacity

2008; EDP Sciences; Volume: 487; Issue: 3 Linguagem: Inglês

10.1051/0004-6361

1432-0746

A. Franceschini, G. Rodighiero, M. Vaccari,

Radio Astronomy Observations and Technology

Context. The background radiation in the optical and the infrared cause energy loss in the propagation of high energy particles through space. In particular, TeV observations with Cherenkov telescopes of extragalactic sources are influenced by the opacity effects due to the interaction of the very high-energy source photons with the background light.