Astronomers trace 84 bright blasts to colliding stars in ancient galaxies

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Astronomers trace 84 bright blasts to colliding stars in ancient galaxies
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Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter @sciencef1rst.

— to capture deep imaging and spectroscopy of some of the faintest galaxies identified as SGRB hosts.

The astronomers found that these galaxies can be either young and star-forming or old and approaching death, demonstrating that neutron-star binary systems can form in a variety of environments. But other SGRBs seem to come from slower collisions, since the researchers also found older SGRBs in more distant and thus more ancient galaxies. The stars in those galaxies may have either taken longer to initially form a binary or been more widely spaced, the scientists posit.

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