Two Gamma-Ray Bubbles 65,000 Light Years Across Spewing from the Milky Way’s Supermassive Black Hole

Mg20627633.900-1_300 A pair of massive gamma ray bubbles appear to be spewing from the black holeat the center of othe Milky Way according to the latest maps from the Fermi Gamma-ray Space Telescope. 

The source of the hour-glassed-shaped bubbles is a mystery, but a new analysis of the Fermi data suggests that the gamma radiation traces out a pair of distinct bubbles that span some 65,000 light years from end to end – soaring above the disc of the galaxy.

The analysis of the data has ruled out dark matter, which you would expect to be smoothly distributed and produce a diffuse glow, from gamma rays produced after dark matter particles meet and annihilate each other rather than such a well-defined shape according to Douglas Finkbeiner of the Harvard-Smithsonian Center for Astrophysics 

The Harvard-Smithsonian tea thinks the bubbles may have been blown out by the explosion of short-lived, massive stars born in a burst of new star formation about 10 million years or they may have been created about 100,000 years ago by high-speed jets of matter created when roughly 100 suns' worth of material fell into the Milky Way's black hole. 

Casey Kazan via New Scientist

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