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SN1999em:
The End of Days - Chandra Catches X-ray Glow From Supernova
The End of Days - Chandra Catches X-ray Glow From Supernova
Chandra Observation of Supernova SN1999em. In late October of 1999, a supernova was detected in NGC 1637, a spiral galaxy that is 25 million light years from Earth. Chandra observed the supernova twice soon after the explosion. X rays, shown by contours overlaid on an optical mage, were detected from 3 million degree gas produced by the supernova. An X-ray source in the center of the galaxy was also detected.
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