View Full Version : Chandra Detects Sound Waves From a Black Hole

2005-Sep-07, 03:07 PM
SUMMARY: The Chandra X-Ray Observatory has "heard" a black hole for the first time. The object is a supermassive black hole at the heart of a galaxy in the Perseus cluster, located 250 million light-years away. Chandra detected deep sound waves eminating from the black hole in the surrounding gas and dust which have traveled hundreds of thousands of light-years. This discovery may help astronomers understand why there is so much hot gas in galaxy clusters when all calculations predict it should cool away - the sound energy is warming it up.

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