News From the Field
Pinpointing Origin of Gamma Rays From a Supermassive Black Hole
July 2, 2009
An international collaboration of 390 scientists reports the discovery of an outburst of very-high-energy gamma radiation from the giant radio galaxy Messier 87, accompanied by a strong rise of the radio flux measured from the direct vicinity of its super-massive black hole. The combined results give first experimental evidence that particles are accelerated to extremely high energies of tera electron Volt in the immediate vicinity of a supermassive black hole.
Washington University in St. Louis
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