Astronomers Spot X-Ray Outburst in Spiral Galaxy Messier 83
In a recent report, it has been claimed that astronomers have managed to spot a new ultraluminous X-ray source (ULX). The group of old, volatile stellar black holes was found to be emitting unexpectedly more X-rays than most binary systems. It was found earlier that stars along with ULXs were quite young and their black holes would also be young, but this recent revelation has claimed that ULXs can contain much older black holes.
The new ULX was found in a spiral galaxy about 15 million light years from Earth, M83, and it was found in 2010 using Chandra.
"The flaring up of this ULX took us by surprise and was a sure sign we had discovered something new about the way black holes grow”, said Roberto Soria of Curtin University in Australia, who claimed that there was nothing noticing found in X-ray images made with Einstein Observatory in 1980, ROSAT in 1994, the European Space Agency's XMM-Newton in 2003 and 2008, or NASA's Swift observatory in 2005.
As far as the reason behind the sudden brightening is concerned, it is believed that it could have something to do with the increase in the amount of material which might be falling from its companion star. There are chances that the companion star is a red giant which is some 500 million years old and could have mass of almost four times the sun's.
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