The detection of the blazar 3C279 at a record distance z=0.54 by MAGIC, and of other distant blazars by H.E.S.S. and VERITAS, indicate that the Universe is more transparent to very-high-energy gamma rays than previously thought on the basis of the estimates of the density of Extragalactic Background Light. The physical implications of these measurements will be discussed.
The transparency of the Universe to Very High Energy Photons.
DE LOTTO, Barbara
2010-01-01
Abstract
The detection of the blazar 3C279 at a record distance z=0.54 by MAGIC, and of other distant blazars by H.E.S.S. and VERITAS, indicate that the Universe is more transparent to very-high-energy gamma rays than previously thought on the basis of the estimates of the density of Extragalactic Background Light. The physical implications of these measurements will be discussed.File in questo prodotto:
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