View Full Version : Chandra Witnesses Big Blast from an Old Black Hole

2012-Apr-30, 06:40 PM
Astronomers keeping an eye out for a supernova explosion in the nearby galaxy M83 instead witnessed a prodigious blast of another type: a new ultraluminous X-ray source, or ULX. In what scientists are calling an “extraordinary outburst,” the ULX in M83 increased in X-ray brightness by at least 3,000 times, one of the largest changes [...]

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