"Extreme X-ray source supports new class of black hole"
Quote:
The X-ray source, HLX-1, is the most extreme member of an extraordinary class of objects - the ultra-luminous X-ray sources - and is located in the galaxy ESO 243-49 at a distance of ~300 million light years from the Earth.
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The astronomers' findings confirm that the extreme luminosity (which is a factor of ~100 above most other objects in its class, and a factor of ~10 higher than the next brightest ultra-luminous X-ray source) is correct.
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The VLT data analysis was especially complicated on this project, as it is very difficult to disentangle the signature in optical wavelengths of HLX-1 from the bright galaxy in which it lies.
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"This is very difficult to explain without the presence of an intermediate mass black hole of between ~500 and 10,000 times the mass of the Sun. HLX-1 is therefore (so far!) weathering the scrutiny of the international astronomy community."
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Black Hole theory standing up to peer scruntiny and creating a new class of 'Intermediate' Black Holes in the centres of Galaxies .. in addition to the measurement breakthroughs made !!
Cheers