Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?

Simple item page
dc.creatorMAGIC Collaboration
dc.creatorAlbert, J.
dc.date2008-07-17
dc.date.accessioned2026-07-07T12:44:42Z
dc.date.available2026-07-07T12:44:42Z
dc.descriptionThe atmospheric Cherenkov gamma-ray telescope MAGIC, designed for a low-energy threshold, has detected very-high-energy gamma rays from a giant flare of the distant Quasi-Stellar Radio Source (in short: radio quasar) 3C 279, at a distance of more than 5 billion light-years (a redshift of 0.536). No quasar has been observed previously in very-high-energy gamma radiation, and this is also the most distant object detected emitting gamma rays above 50 gigaelectron volts. Since high-energy gamma rays may be stopped by interacting with the diffuse background light in the universe, the observations by MAGIC imply a low amount for such light, consistent with that known from galaxy counts.
dc.description9 pages, 6 figures, including Supporting Online Material
dc.identifierhttps://arxiv.org/abs/0807.2822
dc.identifierhttp://arxiv.org/abs/0807.2822
dc.identifierScience 320:1752,2008; Science 320N5884:1752-1754,2008
dc.identifierdoi:10.1126/science.1157087
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220860
dc.subjectAstrophysics
dc.titleVery-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?
dc.typetext

Files

Collections

arXiv