uranologist have been able to see a shining objective known as SDSS1133 since 1950 . reflection by pawn such as the W. M. Keck Observatory and NASA ’s Swift satellite have mark it as a supernova . However , an international squad of researcher have pass back and re - examined all of that sure-enough data , and do n’t believe it is an ordinary supernova . While they have n’t come up with a definitive result yet , the team has hail up with two options that are both pretty exciting : SDSS1133 could be a fresh case of supernova that radiate much longer than normal , or it ’s the first known supermassive black hole that does n’t exist at its galaxy ’s kernel . Michael Koss from the University of Hawaii was lead author of the newspaper , which was publish inMonthly Notices of the Royal Astronomical Society .

After the older datum had been reviewed , Koss and his team took new figure of speech with the 10 - meter Keck II telescope at Keck Observatory . These high - resolution , infrared figure of speech revealed that SDSS1133 appeared as if it had undergo a violent effect in its past .

“ When we break down the Keck data , we found the emitting realm of SDSS1133 is less than 40 light - years across , and that the center of Markarian 177 shows grounds of vivid star geological formation and other features argue a recent mental disturbance that match what we expected for a recoiling contraband muddle , ” Colorado - writer Chao - Ling Hung said in apress expiration .

If SDSS1133 is a black hole , it is associated with Markarian 177 ; a dwarf galaxy 90 million light-colored - age away in the pipe bowl of the Big Dipper . While most black hole are found at the core of the galaxy , SDSS1133 is 2,600 light - years aside . The data suggest that after a merging event between two galaxies , the black hole was essentially booted out on   its own . This could have take place due to vie directionality of spin and gravitational waving emanation between the two black holes in the wandflower .

" We suspect we ’re check the aftermath of a merger of two small galaxies and their central black trap , " explain conscientious objector - generator Laura Blecha . " uranologist searching for resile ignominious holes have been ineffectual to confirm a detection , so finding even one of these source would be a major find . ”

While information does fit the team ’s model that SDSS1133 is a supermassive pitch-black hole that has been ejected out of its galaxy , there is also a possible action that it is a supernova unlike anything that has been seen before . The area got brighter over a longer period of prison term than is typically control in supernovae . It could have been a massive star that had gone through a serial of eruption before the supernova explosion .

" With the data we have in hand , we ca n’t yet distinguish between these two scenarios , " Koss add . " But , one exciting uncovering made with NASA ’s Dean Swift is that the emission of ultraviolet visible light of SDSS1133 has n’t changed for a decade , which is not something typically seen in a young supernova oddment . ”

The researchers plan to consider SDSS1133 at ultraviolet wavelength in 2015 using the Hubble Space Telescope ’s Cosmic Origins Spectrograph .

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