Home > Astronomy, Astrophysics, Black Holes, Gamma Ray Bursts, General Astronomy > Galaxy’s Gamma-Ray Flares Erupted Far From Its Black Hole

Galaxy’s Gamma-Ray Flares Erupted Far From Its Black Hole


In 2011, a months-long blast of energy launched by an enormous black hole almost 11 billion years ago swept past Earth. Using a combination of data from NASA’s Fermi Gamma-ray Space Telescope and the National Science Foundation’s Very Long Baseline Array (VLBA), the world’s largest radio telescope, astronomers have zeroed in on the source of this ancient outburst.

Theorists expect gamma-ray outbursts occur only in close proximity to a galaxy’s central black hole, the powerhouse ultimately responsible for the activity. A few rare observations suggested this is not the case. The 2011 flares from a galaxy known as 4C +71.07 now give astronomers the clearest and most distant evidence that the theory still needs some work. The gamma-ray emission originated about 70 light-years away from the galaxy’s central black hole.

Full Story: http://www.nasa.gov/mission_pages/GLAST/news/aas-flares.html

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