Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-07-17
Science 320:1752,2008; Science 320N5884:1752-1754,2008
Astronomy and Astrophysics
Astrophysics
9 pages, 6 figures, including Supporting Online Material
Scientific paper
10.1126/science.1157087
The 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.
Albert Jacques
MAGIC Collaboration
No associations
LandOfFree
Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-42695