News tagged with gamma radiation

Very High Energy Gamma Rays

(PhysOrg.com) -- Gamma-rays are the most energetic known form of electromagnetic radiation, with each gamma ray being at least one hundred thousand times more energetic than an optical light photon. The most ...

Sep 25, 2009 4.4 / 5 (14) 3

Blazars

(PhysOrg.com) -- A blazar is a galaxy which, like a quasar, has an intensely bright central nucleus containing a supermassive black hole. In a blazar, however, the emitted light sometimes includes extremely ...

Sep 06, 2011 5 / 5 (6) 9 | with audio podcast

A pulsar with a tremendous hiccup

(Phys.org) -- Pulsars are superlative cosmic beacons. These compact neutron stars rotate about their axes many times per second, emitting radio waves and gamma radiation into space.  Using ingenious data ...

Jul 24, 2012 4 / 5 (6) 0 | with audio podcast

Heart of a galaxy emits gamma rays

(PhysOrg.com) -- Quite a few distant galaxies turn out to be cosmic delivery rooms. Large numbers of massive stars are born in the hearts of these starburst galaxies, and later explode as supernovae. In the ...

Oct 02, 2009 4.5 / 5 (6) 6