Naked black hole

Not to be confused with Naked singularity

A naked black hole is in most cases a Black hole stripped of its surrounding galaxy. The most famous example of this type of black hole is B3 1715+425. First confirmed by the National Radio Astronomy Observatory, this black hole hurtles through the Universe at 2,000 kilometers per second.

Formation

Most black holes, when colliding, will suck each other up and combine to form a Supermassive black hole with a galaxy surrounding it. Researchers at the NRAO believe that instead of doing that, B3 1715+425 had itself and its galaxy ripped apart by a bigger force, leaving almost nothing behind.

Research

Lead researcher from NRAO, James Condon, recalls how NRAO hadn’t been looking for a naked black hole. They’d been looking for “orbiting pairs of supermassive black holes, with one offset from the centre of a galaxy, as telltale evidence of a previous galaxy merger.” Instead, they found a rogue black hole only 3,000 light years across, traveling at 3,000 kilometers per second. Condon stated his team believes that B3 1715+425 ran into such a supermassive black hole that B3 1715+425 was torn apart instead of combining with the much bigger black hole.

References

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