Griffin and Dai developed the data collection methodology used to detect the gamma-ray emission from Arp 220. Credit: University of Oklahoma and NASA
A Uni of Oklahoma team has detected for the first time the most luminous gamma-ray emission from a galaxy -the merging galaxy Arp 220 is the nearest ultraluminous infrared galaxy to Earth, and it reveals the hidden extreme energetic processes in galaxies. The first gamma-ray detection of an ultraluminous infrafred galaxy occurs when the most energetic cosmic rays collide with the interstellar medium causing these galaxies to glow – expanding observations of these galaxies to the highest energy ranges...
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