This Black Hole Burped. Twice.

January 19, 2018
Photo:Black hole burping twice(NASA, ESA, and J. Comerford/University of Colorado Boulder)
This is an image of galaxy SDSS J1354+1327 (lower center) and its companion galaxy (upper right).  In the inset box, the older "burp" of gas is seen as blue-green in the inset box, while the more recent "burp" is seen as the bright white light.

identified two of these cosmic burps from a single black hole.  The older "burp" has traveled approximately 30,000 light years from the black hole, while the more recent "burp" is only 3,000 light-years away.  Comerford says the two events took place just 100,000 years apart, a very short time compared to the 13.8-billion-year age of the universe. 

Related:  Researchers Spot Massive Black Hole In Double 'Burp'

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