Markarian 739 Resembles a Smiling Face (IMAGE)

NASA/Goddard Space Flight Center

Markarian 739 Resembles a Smiling Face

Caption

Viewed in visible light, Markarian 739 resembles a smiling face, with a pair of bright cores underscored by an arcing spiral arm. The object is really a pair of merging galaxies. Data from Swift and Chandra reveal the western core (right) to be a previously unknown AGN; past studies already had identified an AGN in the eastern core. The two supermassive black holes are separated by about 11,000 light-years. The galaxy is 425 million light-years away.

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