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22-Dec-2016 09:33
Now, researchers have found, for the first time, that a supermassive black hole's flare was caused by the ejection of its corona.
A supermassive black hole is depicted in this artist's concept'The nature of the energetic source of X-rays we call the corona is mysterious, but now with the ability to see dramatic changes like this we are getting clues about its size and structure,' said Fiona Harrison, the principal investigator.
Astronomers don't know why the coronas shift, but they have learned that this process leads to a brightening of X-ray light that can be observed by telescopes The other model proposes that the coronas are spread out more diffusely, either as a larger cloud around the black hole, or as a 'sandwich' that envelops the surrounding disk of material like slices of bread.
The other model proposes that the coronas are spread out more diffusely, either as a larger cloud around the black hole, or as a 'sandwich' that envelops the surrounding disk of material like slices of bread.
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The next year, in 1667, the Dutch under command of De Ruyter executed a retaliatory expedition, and dealt the English navy a heavy blow at the Raid on the Medway (also known as the Battle of Chatham), in effect ending the Second Anglo-Dutch War.
They stopped therefore and asked an old lady at the side of the road for an explanation.In fact, all the buildings in West Terschelling were burned down, except the church and the lighthouse "Brandaris".
