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Astronomers have discovered a star that’s running away from home. The star is speeding away at a blistering 2.6 million kilometers/hour, apparently after being cast out of a neighboring galaxy to us, the Large Magellenic Cloud—probably by a massive black hole. The speeding star is the first hint that there indeed may be a black hole in the LMC.
The astronomers, writing in an upcoming issue of Astrophysical Journal Letters, reckon that the flung fugitive was sent on its way much like a sling shot propels a stone. They think it was part of a two-star or binary system. Its companion got sucked into the black hole and this one, known as HE 0437-5439, was tossed on its way.
The astronomers say that the star cannot be one of our own Milky Way buddies, because the elements composing it are in different amounts from those in the Milky Way. HE 0437 is not the only star fleeing the Milky Way, though. The researchers say there are nine others beating it away from our galaxy, but they say it’s clear that those are Milky Way natives.
—Steve Mirsky, with reporting by Harvey Black
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Add CommentThere is a need to revisit the definition of the "birth of Universe" The different phenomenon shows that births of portions of the known Universe might have happened at different times through the occurances of Black holes and White holes, desturction of massive stars, etc. The resultant kinetic energies and other forces might have resulted in the movement of the galaxies and stars. As we are moving outward, more and more newer galaxies are coming within our detectable zone.
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