Suzaku found another fossil fireball in the supernova remnant W49B. It detected X-rays produced when heavily ionized iron atoms recapture an electron. This view combines infrared images from the ground (red,green) with X-rays data from Nasa's Chandra X-Ray Observatory (blue).
Suzaku detected X-rays from fully ionized silicon and sulfur - which indicates temperatures of 17 million celsius
Daily Mail on 1 January 2010
The glowing embers left behind by one of the most powerful type of explosions in the Universe have been revealed for the first time.
Remnants from giant fireballs unleashed by a supernova are still glowing at temperatures 10,000 times hotter than the Sun thousands of years after the event.
They were captured by the Japanese Suzaku space observatory, after unusual features were detected in the Jellyyfish Nebula (IC 443), 5,000 light years away.
Read more:http://www.dailymail.co.uk/sciencetech/article-1239586/Great-balls-Embers-10-000-times-hotter-Sun-left-supernova.html
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