Tuesday, December 3, 2013

Stellar-Mass Black Hole Caught Consuming Matter In A Surprisingly Calm Manner

http://www.redorbit.com/news/space/1113015781/black-hole-gemini-unexpected-discovery-in-messier-101-112913/

November 27, 2013 - redOrbit.com
Our understanding of how some black holes consume matter might be changed by new observations of a black hole powering an energetic X-ray source in a galaxy some 22 million light years away. The findings, published in a recent issue of Nature, indicate that this particular black hole, thought to be the engine behind the X-ray source’s high-energy light output, is unexpectedly lightweight. Additionally, in spite of the generous amount of dust and gas being fed to it by a massive stellar companion, it swallows this material in a surprisingly orderly fashion.
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They were surprised, therefore, when the Gemini Observatory data revealed that M101 ULX-1′s black hole is on the small side. Astrophysicists are unable to explain why this is so.
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