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Uncovering the Origins of Galaxies' Halos

Uncovering the Origins of Galaxies' Halos

November 20, 2017

Using HSC on the Subaru Telescope, researchers from Tohoku University and NAOJ have identified 11 dwarf galaxies and two star-containing halos in the outer region of a large spiral galaxy 25 million light-years away from Earth. The findings provide new insight into how these 'tidal stellar streams' form around galaxies...

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Minor Merger Kicks Supermassive Black Hole into High Gear

Minor Merger Kicks Supermassive Black Hole into High Gear

October 30, 2017

A team of researchers used the Subaru Telescope to study the galaxy M77, which is famous for its super-active nucleus that releases enormous energy. The unprecedented deep image of the galaxy reveals evidence of a hidden minor merger billions of years ago. The discovery gives crucial evidence for the minor merger origin of active galactic nuclei...

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