Intermediate-mass Black Hole Discovered


NASA's Hubble Space Telescope has found the first ever intermediate-mass black hole to be discovered with evidence of a cluster of blue stars orbiting. It is located at a distance of 290,000,000 light-years on the edge of the galaxy ESO 243-49. Doubted HLX-1 (Hyper-Luminous X-ray source 1) the black hole has a mass of about 20,000 solar masses.

Astronomers have concluded that the star cluster means that the black hole use to be the core of a dwarf galaxy that was absorbed by ESO 243-49. They further speculated that it helps the understanding the development of supermassive black holes and galaxies. "For the first time, we have evidence on the environment, and thus the origin, of this middle-weight black hole," said Harvard-Smithsonian Center for Astrophysics Mathieu Servillat and project researcher. The conclusions about this intermediate-mass black hole originally the core a dwarf galaxy is not a stretch. Given the fact that the large Galaxies have supermassive black holes at their center it is reasonable to suspect that dwarf galaxies have intermediate-mass black hole at their centers.

What this says about the origin of either size of black hole is far more speculative and it is highly dependent on the theories being used to interpret the data. For example astronomers have not actually images individual but are basing the claim of a cluster of blue stars on the intensity and the color of the light coming from the disk of material around it. However even if this interpretation is correct based stellar evolution models these stars are quite young and could not have moved far from were they originated. This is still a problem for those models since they same stellar evolution models can’t form stars in the gravitational environment around a large black hole.

Reference

Black Hole Came from a Shredded Galaxy

 

 

 

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